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123-38-6 Usage

Air & Water Reactions

Highly flammable. Soluble in water.

Reactivity Profile

Propionaldehyde may form explosive peroxides. Reacts vigorously with oxidizing agents. Explosive in the form of vapor when exposed to heat or flame [Lewis]. Incompatible with strong bases and strong reducing agents. Vigorous polymerization reaction with methyl methacrylate. Polymerization may also occur in the presence of acids or caustics .

Chemical Properties

Propionaldehyde has a characteristic sharp and pungent odor similar to acetaldehyde.It undergoes reactions typical for the low molecular weight aldehydes, which, because of the terminal carbonyl group, are very reactive. Contamination or the exposure to elevated temperatures may induce a hazardous polymerization. Propionaldehyde is a colorless, flammable liquid with a suffocating fruity odor. It is used as Intermediate for the chemical industry, for example for the manufacture of pharmaceuticals, pesticides, perfumes and plastics.

Preparation

By oxidation of propyl alcohol, or by dry distillation of barium propionate with calcium formate.

General Description

A clear colorless liquid with an overpowering fruity-like odor. Less dense than water. Flash point 15°F. Vapors are heavier than air.

Carcinogenicity

In a mutagenic test in V79 cells, Eder et al. observed that propionaldehyde is not mutagenic at 1 mM, but is toxic at 2mM. Similar to acrolein, Eder et al. suggested that the mutagenicity of this compound is mediated by its bifunctionality, whereas its cytotoxicity is mediated by the aldehyde function.

Preparation

Propionaldehyde is prepared in the usual way by the oxidation of n-propyl alcohol. It can also be prepared by dehydrogenating the alcohol by passing the vapors over a heated copper or brass catalyst. This avoids the danger of further oxidation to propionic acid. The reactions of propionaldehyde are practically like those of acetaldehyde. It must be remembered that only the two alpha hydrogen atoms are active in replacement and condensation reactions.

Definition

ChEBI: An aldehyde that consists of ethane bearing a formyl substituent. The parent of the class of propanals.

Uses

Manufacture of propionic acid, polyvinyl, and other plastics; synthesis of rubber chemicals; disin- fectant; preservative.

Uses

Propionaldehyde is used in the productionof propionic acid, propionic anhydride, andmany other compounds. It is formed in theoxidative deterioration of corn products, suchas corn chips. It occurs in automobile exhaustgases.

Waste Disposal

Propionaldehyde is destroyed by burning in achemical incinerator equipped with an afterburnerand scrubber. Permanganate oxidationis a suitable laboratory method of destruction.

Safety Profile

Moderately toxic by skin contact, ingestion, and subcutaneous routes. Mddly toxic by inhalation. A skin and severe eye irritant. Flammable liquid. Dangerous fire hazard when exposed to heat or flame; reacts vigorously with oxidizers. Explosive in the form of vapor when exposed to heat or flame. Vigorous polymerization reaction with methyl methacrylate. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.

Shipping

UN1275 Propionaldehyde, Hazard Class: 3; Labels: 3-Flammable liquid. Propionaldehyde is readily oxidized if in contact to oxygen and should therefore be stored under inert gases.

Occurrence

Reported found in apple aroma and in the essential oils of camphor, Rosa centifolia, clary sage, Pinus excelsa and Pinus silverstris. Also reported found in over 100 natural products including apple, banana, sweet cherry, sour cherry, black currant grapes, melon, pineapple, strawberry, cabbage, carrot, celery, cucumber, garlic, onion, leek, potato, peas, rutabaga, tomato, Scotch spearmint oil, vinegar, bread and bread preferment, blue cheeses, cheddar cheese, Swiss cheese, butter, milk, cream, boiled egg, caviar, fatty fish, cooked turkey, beef, pork and chicken, beer, rum, cognac, whiskies, grape wines, coffee, cocoa, tea, roasted filberts and peanuts, peanut oil, potato chips, pecans, oats, honey, soybeans, Arctic bramble, beans, Bantu beer, plum brandy, cauliflower, Brussels sprouts, rice, prickly pear, peated malt, clary sage, truffle, krill, oysters, loganberry, Chinese quince and maté.

Health Hazard

Propionaldehyde is a mild irritant to humanskin and eyes. The irritation effect from40 mg was severe in rabbits’ eyes. The toxicityof this compound observed in test animalswas low. Subcutaneous administration in ratsexhibited the symptoms of general anestheticeffect, convulsion, and seizure. Inhalationtoxicity was determined to be low. A concentrationof 8000 ppm (19,000 mg/m3) inair was lethal to rats.LD50 value, oral (rats): 1400 mg/kgLD50 subcutaneous (rats): 820 mg/kg.

Incompatibilities

Incompatible with strong acids; amines. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoa- cids, epoxides. Strong caustics; reducing agents can cause explosive polymerization. Can self-ignite if finely dispersed on porous or combustible material, such as fabric. Heat or UV light can cause decomposition. Aldehydes are fre- quently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are gener- ated by the combination of aldehydes with azo, diazo com- pounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (anti- oxidants) to shipments of aldehydes retards autoxidation

Uses

Propionaldehyde is produced by the oxo reaction of ethylene with carbon monoxide and hydrogen. n-Propyl alcohol is produced by hydrogenation of propionaldehyde, and propionic acid is made by oxidation of propionaldehyde. n-Propyl alcohol is used as solvent in printing inks and as an intermediate in the preparation of agricultural chemicals. Propionic acid is used as a grain preservative as, for example, in preventing spoilage of wet corn used as animal feed. The use of propionic acid as a grain preservative is an alterna tive to drying by heating, which consumes fuel, and is considered mostly when fuel is expensive.

Hazard

Flammable, dangerous fire risk, explosive limits in air 3.0–16%. Upper respiratory tract irri- tant.

Fire Hazard

Behavior in Fire: Vapor is heavier than air and may travel considerable distance to a source of ignition and flash back.

Potential Exposure

Used as a synthetic flavoring; as a disinfectant and preservative; to make propionic acid; in plastic and rubber manufacturing; to make alkyl resins and plasticizers.

Description

Propionaldehyde is a volatile liquid substance which consists of one carbonyl group and its characteristic functional group. The main functional group is an aldehyde which classifies propionaldehyde in the carbonyls. The main trunk of this substance is a short aliphatic chain. The carbonyl group determines, to a large extent, its chemical properties and most importantly its nucleophilic property. Propionaldehyde is readily oxidized if in contact to oxygen and should therefore be stored under inert gases.

Purification Methods

the aldehyde with CaSO4 or CaCl2, and fractionally distil it under nitrogen or in the presence of a trace of hydroquinone (to retard oxidation). Blacet and Pitts [J Am Chem Soc 74 3382 1952] repeatedly distilled the middle fraction in a vacuum until it no longer gave a solid polymer when cooled to -80o. It is stored with CaSO4. [Beilstein 1 IV 3165.]
InChI:InChI=1/C3H6O/c1-2-3-4/h3H,2H2,1H3

123-38-6 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (A16146)  Propionaldehyde, 97%    123-38-6 500ml 245.0CNY Detail
Alfa Aesar (A16146)  Propionaldehyde, 97%    123-38-6 1000ml 307.0CNY Detail
Alfa Aesar (A16146)  Propionaldehyde, 97%    123-38-6 5000ml 1233.0CNY Detail
Sigma-Aldrich (538124)  Propionaldehyde  reagent grade, 97% 123-38-6 538124-250ML 837.72CNY Detail
Sigma-Aldrich (538124)  Propionaldehyde  reagent grade, 97% 123-38-6 538124-1L 1,692.99CNY Detail

123-38-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name propanal

1.2 Other means of identification

Product number -
Other names Propionaldehyde

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Propionaldehyde is used in the manufacture of plastics, in the synthesis of rubber chemicals, and as a disinfectant and preservative.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:123-38-6 SDS

123-38-6Synthetic route

allyl alcohol
107-18-6

allyl alcohol

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
(sulphos)Rh(CO)2 In octane; water at 100℃; for 1h; Product distribution; Further Variations:; Solvents; autoclave;100%
With chloro(cyclopentadienyl)bis(triphenylphosphine)ruthenium (II); silver(I) 4-methylbenzenesulfonate In toluene at 60℃; for 6h; Inert atmosphere;100%
With [Ru(η3:η3-C10H16)Cl2(benzimidazole)] In glycerol at 75℃; for 12h; Sealed tube; Inert atmosphere; Green chemistry;99%
acrolein
107-02-8

acrolein

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With hydrogen; palladium(II) complex of ferrocenylamine sulfide (2) In acetone under 4137.2 Torr; for 1h; or with catalyst 3, 2 h;100%
With hydrogen; Ni/AlPO4-SiO2; nickel In methanol at 47.9℃; for 0.666667h;100%
With 2%Pd/Al2O3; hydrogen; palladium In water at 150℃; under 3750.38 Torr;85%
hydrogen
1333-74-0

hydrogen

acrolein
107-02-8

acrolein

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With C61H62ClN3P2Ru In dichloromethane-d2 at 50℃; under 3040.2 Torr; for 8h; Reagent/catalyst; Time;100%
propan-1-ol
71-23-8

propan-1-ol

A

propionaldehyde
123-38-6

propionaldehyde

B

propionic acid
802294-64-0

propionic acid

Conditions
ConditionsYield
With potassium hydroxide at 50℃; electrolysis;A n/a
B 99%
With C30H24N2O7W; dihydrogen peroxide In water; acetonitrile for 12h; Reflux;A 64%
B 23%
palladium at 50℃; for 4h; electrooxydation on Pt-Rh-electrode;A 19.5%
B 17%
ethene
74-85-1

ethene

carbon monoxide
201230-82-2

carbon monoxide

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
propylamine; di(rhodium)tetracarbonyl dichloride In ethanol at 110℃; under 50 Torr; for 1h;99%
With ; hydrogen In N,N-dimethyl-formamide at 100℃; under 42753.4 Torr; for 4.5h; Product distribution; other alkene; selectivity of the hydroformylation;74%
With hydrogen; silica gel; palladium var. Pd dispersion;
4-(1-propenyloxymethyl)-1,3-dioxalan-2-one

4-(1-propenyloxymethyl)-1,3-dioxalan-2-one

A

4-hydroxymethyl-1,3-dioxolan-2-one
931-40-8

4-hydroxymethyl-1,3-dioxolan-2-one

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With water; dichloro bis(acetonitrile) palladium(II) at 40℃; for 2h;A 99%
B n/a
propan-1-ol
71-23-8

propan-1-ol

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With tetrahexylammonium tetrakis(diperoxomolybdo)phosphate In chloroform at 40℃; for 48h;98%
With C19H20N3O2Ru(2+)*2F6P(1-) In aq. buffer at 24.84℃; for 1h; pH=1.8; Thermodynamic data; Activation energy; Reagent/catalyst;95%
With cetyltrimethylammonium bromochromate In dichloromethane for 2h; Heating;92%
1-Chloropropane
540-54-5

1-Chloropropane

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With C30H38Cl2Ir2N4 In dimethyl sulfoxide at 50℃; for 5h;95%
With oxygen; kieselguhr; copper(l) chloride In dichloromethane for 1.5h; Oxidation; Heating;91%
propan-1-ol
71-23-8

propan-1-ol

[closo-3,3-(triphenylphosphine)2-3-HSO4-3,1,2-RhC2B9H11] tetrahydrofuran solvate
82807-94-1

[closo-3,3-(triphenylphosphine)2-3-HSO4-3,1,2-RhC2B9H11] tetrahydrofuran solvate

A

closo-3,3-(PPh3)2-3-H-3,1,2-RhC2B9H11
53687-46-0

closo-3,3-(PPh3)2-3-H-3,1,2-RhC2B9H11

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
In propan-1-ol byproducts: H2SO4; under Ar, Rh complex suspended in 1-propanol, suspn. heated to 50°C in water bath for 10 min; ppt. filtered off, washed three times with ethanol and twice with diethyl ether, air-dried;A 94%
B n/a
vinyl benzoate
583-04-0

vinyl benzoate

A

propionaldehyde
123-38-6

propionaldehyde

B

benzoic acid
65-85-0

benzoic acid

Conditions
ConditionsYield
With dichloro bis(acetonitrile) palladium(II); cyclopentadienylruthenium(II) trisacetonitrile hexafluorophosphate; diethylene glycol dimethyl ether; 1,6-bis(diphenylphosphino)hexane; water In 1,2-dimethoxyethane; dichloromethane at 20 - 85℃; for 0.666667h; Inert atmosphere;A 89 %Chromat.
B 94%
n-propyl nitrite
543-67-9

n-propyl nitrite

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With dimethyl sulfoxide at 70℃; for 6h;92.21%
With boron trifluoride diethyl etherate In diethyl ether for 4h; Ambient temperature;91%
at 130 - 150℃;
trans-n-PrOIr(CO)(PPh3)2
94070-39-0

trans-n-PrOIr(CO)(PPh3)2

A

carbonylhydridotris(triphenylphosphine)iridium(I)
33541-67-2

carbonylhydridotris(triphenylphosphine)iridium(I)

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With triphenylphosphine In toluene soln. of Ir complex and PPh3 (.approx. 2-3 equiv.) in toluene allowed to stir at 70°C for several hours; org. products detected by gas chromy.;A n/a
B 92%
2-methylpropenal
78-85-3

2-methylpropenal

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
Stage #1: 2-methylpropenal With morpholine; TEMPOL In water for 0.5h;
Stage #2: With formaldehyd In water at 20 - 70℃; for 1.08h; Reagent/catalyst;
90.8%
1,1-diacetoxy-1-ethyl methane
33931-80-5

1,1-diacetoxy-1-ethyl methane

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With caro's acid; silica gel In dichloromethane for 5h; Heating;90%
With N-sulfonic acid poly(4-vinylpyridinium) chloride In methanol at 20℃; for 0.416667h;90%
With N-Bromosuccinimide; water; silica gel at 20℃; for 0.05h; neat (no solvent); chemoselective reaction;87%
diethyl(2,2'-bipyridyl)nickel(II)
15218-76-5

diethyl(2,2'-bipyridyl)nickel(II)

A

Ni(CO)2(2,2'-bipyridine)
14917-14-7

Ni(CO)2(2,2'-bipyridine)

B

3,4-hexanedione
4437-51-8

3,4-hexanedione

C

ethene
74-85-1

ethene

D

propionaldehyde
123-38-6

propionaldehyde

E

pentan-3-one
96-22-0

pentan-3-one

Conditions
ConditionsYield
With carbon monoxide In tetrahydrofuran THF, room temp., 0.1 h;A 50%
B 0%
C 0%
D 0%
E 90%
ethylpentacarbonylrhenium
75149-83-6

ethylpentacarbonylrhenium

[D3]acetonitrile
2206-26-0

[D3]acetonitrile

A

Os(CO)4(Re(CO)4(C(2)H3CN))2
98688-87-0

Os(CO)4(Re(CO)4(C(2)H3CN))2

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
In [D3]acetonitrile under N2 flow, EtRe(CO)5 in CD3CN was added via syringe to an NMR tube,the contents were frozen and degassed, H2Os(CO)4 (2 equiv) was added byvac. transfer, reaction was complete in 8 h at 62°C; monitored by (1)H NMR, solvent was removed in vacuo, residue taken up in CH2Cl2, addn. of hexane; organometallic product (presumably Re2Os(CO)12(CD3CN)2) was not obtained pure;A n/a
B 89%
phenyl butyl ketone
1009-14-9

phenyl butyl ketone

A

propionaldehyde
123-38-6

propionaldehyde

B

butyraldehyde
123-72-8

butyraldehyde

C

propionic acid
802294-64-0

propionic acid

D

benzoic acid
65-85-0

benzoic acid

E

butyric acid
107-92-6

butyric acid

Conditions
ConditionsYield
With 5% active carbon-supported ruthenium; water; oxygen; calcium oxide at 100℃; for 12h; Reagent/catalyst; Time;A n/a
B n/a
C n/a
D 89%
E n/a
hydridopentacarbonylrhenium(I)
16457-30-0

hydridopentacarbonylrhenium(I)

ethylpentacarbonylrhenium
75149-83-6

ethylpentacarbonylrhenium

[D3]acetonitrile
2206-26-0

[D3]acetonitrile

A

Re2(CO)9(C(2)H3CN)
98688-84-7

Re2(CO)9(C(2)H3CN)

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
In [D3]acetonitrile under N2 flow EtRe(CO)5 in CD3CN was added via syringe to an NMR tube, the contents were frozen and degassed, and HRe(CO)5 (1:1 ratio) was added via vac. transfer, the tube was sealed and heated (60°C) for 27h; monitored by (1)H NMR, Re2(CO)9(CD3CN) was isolated by preparative layer chromy.; elem. anal., yield of EtCHO was detd. by the integration of the corresponding peak in the (1)H NMR spectrum;A 70%
B 88%
2-(6,6-Dimethylbicyclo[3.1.1]hept-2-yl)propenal
149935-82-0

2-(6,6-Dimethylbicyclo[3.1.1]hept-2-yl)propenal

acrolein
107-02-8

acrolein

A

2-(6,6-Dimethylbicyclo[3.1.1]hept-2-yl)propanal
178745-31-8

2-(6,6-Dimethylbicyclo[3.1.1]hept-2-yl)propanal

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
Pd on carbonA 87%
B n/a
(C4H9)3SnOCH2CH(CH3)Br

(C4H9)3SnOCH2CH(CH3)Br

A

tributyltin bromide
1461-23-0

tributyltin bromide

B

propionaldehyde
123-38-6

propionaldehyde

C

methyloxirane
75-56-9, 16033-71-9

methyloxirane

Conditions
ConditionsYield
80% decompn. of the crude compound at 150°C (0.5 h);A n/a
B 13%
C 87%
propionic acid
802294-64-0

propionic acid

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With (CH3)2NCH2NpSiH2Ph at 150 - 170℃;85%
Stage #1: propionic acid With 4-methyl-morpholine; 1,3,5-Triazine; 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholin-4-ium chloride hydrate In tetrahydrofuran; water at 25℃; for 1h;
Stage #2: With 5%-palladium/activated carbon; hydrogen In tetrahydrofuran; water at 25℃; under 760.051 Torr; for 19h;
49%
With calcium carbonate at 450 - 500℃;
Trifluoro-methanesulfonate14-(2-hydroxy-propyl)-7-phenyl-5,6,8,9-tetrahydro-dibenzo[c,h]acridinium;
80253-84-5

Trifluoro-methanesulfonate14-(2-hydroxy-propyl)-7-phenyl-5,6,8,9-tetrahydro-dibenzo[c,h]acridinium;

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With 2,4,6-triphenylpyridine at 190℃; under 15 Torr;85%
propylamine
107-10-8

propylamine

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With potassium permanganate; iron(II) sulfate In dichloromethane for 5h; Heating;84%
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; [bis(acetoxy)iodo]benzene In dichloromethane at 0 - 20℃; for 0.333333h; Inert atmosphere; Green chemistry;80%
With N-Bromosuccinimide; perchloric acid; iridium(III) chloride; mercury(II) diacetate at 35℃; for 72h; Rate constant; Thermodynamic data; energy data: E(act); effect of conc. of reactants;
C13H12N2O
1266113-09-0

C13H12N2O

n-propyl halide

n-propyl halide

A

N-phenylbenzamidine
1527-91-9

N-phenylbenzamidine

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
Stage #1: C13H12N2O; n-propyl halide In diethyl ether at 20℃; Inert atmosphere;
Stage #2: With sodium carbonate In diethyl ether at 20℃; Inert atmosphere;
A n/a
B 84%
hexane-3,4-diol
922-17-8

hexane-3,4-diol

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With sodium hypochlorite In acetonitrile at 20℃; for 0.25h;83%
trans-propenylamine N,N-disiliciee
78108-64-2

trans-propenylamine N,N-disiliciee

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With hydrogenchloride82%
n-propyl halide

n-propyl halide

A

N1,N1-dimethyl-N2-phenylformamidine
1783-25-1

N1,N1-dimethyl-N2-phenylformamidine

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
Stage #1: C9H12N2O; n-propyl halide In diethyl ether at 20℃; Inert atmosphere;
Stage #2: With sodium carbonate In diethyl ether at 20℃; Inert atmosphere;
A n/a
B 82%
propylene glycol
57-55-6

propylene glycol

A

2-ethyl-4-methyl-1,3-dioxolane
4359-46-0

2-ethyl-4-methyl-1,3-dioxolane

B

propionaldehyde
123-38-6

propionaldehyde

Conditions
ConditionsYield
With tungsten trioxide on silica; hydrogen In water at 250℃; for 5h; Concentration; Temperature; Inert atmosphere;A 31.7%
B 81.3%
With sulfuric acid In water at 130℃; Thermodynamic data; Kinetics; Activation energy; Further Variations:; Temperatures; reagent concentration; Dehydration; acetalization;
With ferrierite(20) at 300℃; chemoselective reaction;
propylamine
107-10-8

propylamine

propionaldehyde
123-38-6

propionaldehyde

N-propylidenepropylamine
7707-70-2

N-propylidenepropylamine

Conditions
ConditionsYield
In toluene for 1h; Ambient temperature;100%
With potassium hydroxide 1.) 5-8 deg C, 2 h, 2.) room temperature, 30 min;62%
Stage #1: propylamine; propionaldehyde at 0℃; for 1.5h; Inert atmosphere;
Stage #2: With potassium hydroxide at -18℃; for 24h; Inert atmosphere;
29%
1,2-dimethoxybenzene
91-16-7

1,2-dimethoxybenzene

propionaldehyde
123-38-6

propionaldehyde

9,10-diethyl-2,3,6,7-tetramethoxy-anthracene
140648-13-1

9,10-diethyl-2,3,6,7-tetramethoxy-anthracene

Conditions
ConditionsYield
With sulfuric acid; acetonitrile for 0.5h;100%
With sulfuric acid at 5 - 10℃;98%
With sulfuric acid In water at -10℃; for 2h;46%
propionaldehyde
123-38-6

propionaldehyde

propan-1-ol
71-23-8

propan-1-ol

Conditions
ConditionsYield
With hydrogen; mer-Os(PPh3)3HBr(CO) at 150℃; under 22800 Torr; for 1.66667h; Product distribution;100%
With hydrogen; mer-Os(PPh3)3HBr(CO) In toluene at 150℃; under 22800 Torr; for 1.7h;100%
With hydrogen In water at 60℃; under 15001.5 Torr; for 8h; Reagent/catalyst; Autoclave;100%
propionaldehyde
123-38-6

propionaldehyde

(E)-2-methylpent-2-enal
623-36-9

(E)-2-methylpent-2-enal

Conditions
ConditionsYield
With sodium hydroxide In water at 50℃; for 1h;100%
Stage #1: propionaldehyde With pyrrolidine In hexane at 20℃; for 48h;
Stage #2: With hydrogenchloride In hexane; water at 20℃; for 4h; stereoselective reaction;
95%
With pyrrolidine; benzoic acid In pentane at 10℃; for 48h;90%
trimethylsilyl cyanide
7677-24-9

trimethylsilyl cyanide

propionaldehyde
123-38-6

propionaldehyde

2-<(trimethylsilyl)oxy>butanenitrile
24731-32-6

2-<(trimethylsilyl)oxy>butanenitrile

Conditions
ConditionsYield
With trans-{(iBu)2ATIGeiPr}2Pt(CN)2 In chloroform-d1 at 50℃; for 2h; Catalytic behavior; Schlenk technique; Glovebox;100%
With C29H38AlN4O2(1+)*CF3O3S(1-) at 20℃; for 0.0833333h; Catalytic behavior; Inert atmosphere; Schlenk technique;99%
With C11H8N3O8S(3-)*Fe(3+)*6H2O In methanol at 20℃; for 4h;98.1%
propionaldehyde
123-38-6

propionaldehyde

cyclohexene
110-83-8

cyclohexene

cyclohexyl ethyl ketone
1123-86-0

cyclohexyl ethyl ketone

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
at 27℃; for 22h; (γ-irradiation);
Irradiation;
propionaldehyde
123-38-6

propionaldehyde

2-chloropropanal
683-50-1

2-chloropropanal

Conditions
ConditionsYield
With N-chloro-succinimide; rac-Pro-OH In chloroform at 0 - 20℃;100%
With chlorine In dichloromethane; N,N-dimethyl-formamide at 10℃; for 4h; Reagent/catalyst; Inert atmosphere;87.5%
With sulfuryl dichloride In dichloromethane at -10℃; Reflux; Inert atmosphere;66%
pyrrolidine
123-75-1

pyrrolidine

cycl-isopropylidene malonate
2033-24-1

cycl-isopropylidene malonate

propionaldehyde
123-38-6

propionaldehyde

2,2-Dimethyl-5-(1-pyrrolidin-1-yl-propyl)-[1,3]dioxane-4,6-dione
93498-07-8

2,2-Dimethyl-5-(1-pyrrolidin-1-yl-propyl)-[1,3]dioxane-4,6-dione

Conditions
ConditionsYield
In diethyl ether for 0.166667h;100%
1,2,3-Benzotriazole
95-14-7

1,2,3-Benzotriazole

propionaldehyde
123-38-6

propionaldehyde

1-Benzotriazol-1-yl-propan-1-ol
111507-79-0

1-Benzotriazol-1-yl-propan-1-ol

Conditions
ConditionsYield
at 25℃;100%
3-(tetrahydropyran-2'-yloxy)propyne
6089-04-9

3-(tetrahydropyran-2'-yloxy)propyne

propionaldehyde
123-38-6

propionaldehyde

1-ethyl-4-(tetrahydro-2-pyranyloxy)-2-butyn-1-ol
14092-31-0

1-ethyl-4-(tetrahydro-2-pyranyloxy)-2-butyn-1-ol

Conditions
ConditionsYield
Stage #1: 3-(tetrahydropyran-2'-yloxy)propyne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h;
Stage #2: propionaldehyde In tetrahydrofuran; hexane at -78℃; for 1h; Further stages.;
100%
Stage #1: 3-(tetrahydropyran-2'-yloxy)propyne With copper(l) iodide; ethylmagnesium bromide In tetrahydrofuran at -10 - 20℃; for 4h; Metallation;
Stage #2: propionaldehyde In tetrahydrofuran at -10 - 20℃; for 14h; Grignard reaction;
86%
Stage #1: 3-(tetrahydropyran-2'-yloxy)propyne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 2h; Inert atmosphere;
Stage #2: propionaldehyde In tetrahydrofuran; hexane at -78 - 20℃; Inert atmosphere;
80%
(Z)-Cyclooctene
931-88-4, 931-87-3

(Z)-Cyclooctene

propionaldehyde
123-38-6

propionaldehyde

cyclooctyl-1 propanone-1
85359-51-9

cyclooctyl-1 propanone-1

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
1-methylcyclohex-1-ene
591-49-1

1-methylcyclohex-1-ene

propionaldehyde
123-38-6

propionaldehyde

(methyl-2' cyclohexyl)-1 propanone-1
85995-78-4

(methyl-2' cyclohexyl)-1 propanone-1

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
(S)-1-amino-2-(methoxymethyl)pyrrolidine
59983-39-0

(S)-1-amino-2-(methoxymethyl)pyrrolidine

propionaldehyde
123-38-6

propionaldehyde

[(S)-2-methoxymethylpyrrolidin-1-yl]-N-propylideneamine
70113-32-5

[(S)-2-methoxymethylpyrrolidin-1-yl]-N-propylideneamine

Conditions
ConditionsYield
In diethyl ether at 20℃;100%
With magnesium sulfate In dichloromethane at 20℃; for 12h;89%
With 4 A molecular sieve In dichloromethane79%
(S)-1-amino-2-(methoxymethyl)pyrrolidine
59983-39-0

(S)-1-amino-2-(methoxymethyl)pyrrolidine

propionaldehyde
123-38-6

propionaldehyde

N-[(S)-2-methoxymethylpyrrolidin-1-yl]propan-1-imine
72203-94-2

N-[(S)-2-methoxymethylpyrrolidin-1-yl]propan-1-imine

Conditions
ConditionsYield
at 20℃; for 16h;100%
at 20℃;100%
In dichloromethane at 20℃; for 20h;98%
propionaldehyde
123-38-6

propionaldehyde

ethyl(p-menthene-1-yl-6) cetone
31375-17-4

ethyl(p-menthene-1-yl-6) cetone

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
1-methylcyclopent-1-ene
693-89-0

1-methylcyclopent-1-ene

propionaldehyde
123-38-6

propionaldehyde

(methyl-2' cyclopentyl)-1 propanone-1
81977-75-5

(methyl-2' cyclopentyl)-1 propanone-1

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
Cycloheptene
628-92-2

Cycloheptene

propionaldehyde
123-38-6

propionaldehyde

cycloheptyl-1 propanone-1
89932-42-3

cycloheptyl-1 propanone-1

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
1-methylcycloheptene
1453-25-4

1-methylcycloheptene

propionaldehyde
123-38-6

propionaldehyde

(methyl-2' cycloheptyl)-1 propanone-1
89932-43-4

(methyl-2' cycloheptyl)-1 propanone-1

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
1-methylcyclooctene
15840-64-9

1-methylcyclooctene

propionaldehyde
123-38-6

propionaldehyde

(methyl-2' cyclooctyl)-1 propanone-1
89932-44-5

(methyl-2' cyclooctyl)-1 propanone-1

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
Chlorodifluoromethyl n-hexyl ketone
86340-68-3

Chlorodifluoromethyl n-hexyl ketone

propionaldehyde
123-38-6

propionaldehyde

4,4-difluoro-3-hydroxy-5-undecanone
127894-36-4

4,4-difluoro-3-hydroxy-5-undecanone

Conditions
ConditionsYield
With copper(l) chloride; zinc In tetrahydrofuran for 4h; Heating;100%
Lithium; 4,6-dimethoxy-benzofuran-3-olate

Lithium; 4,6-dimethoxy-benzofuran-3-olate

propionaldehyde
123-38-6

propionaldehyde

2-(1-Hydroxy-propyl)-4,6-dimethoxy-benzofuran-3-one
131403-04-8

2-(1-Hydroxy-propyl)-4,6-dimethoxy-benzofuran-3-one

Conditions
ConditionsYield
at -78℃; for 0.166667h;100%
C6H6O2(2-)*2Li(1+)
142252-83-3

C6H6O2(2-)*2Li(1+)

propionaldehyde
123-38-6

propionaldehyde

2-(1-hydroxypropyl)hexa-3,5-dienoic acid

2-(1-hydroxypropyl)hexa-3,5-dienoic acid

Conditions
ConditionsYield
In tetrahydrofuran Product distribution; Mechanism; regioselectivity of addition; 1.) -70 deg C, 30 min; 2.) 30 deg C, 2 h; further aldehyde, ketones and usaturated ketones;100%
In tetrahydrofuran 1.) -70 deg C, 30 min; 2.) 30 deg C, 2 h;100%
2-<<1-(trifluoromethyl)-1,2,2,2-tetrafluoroethyl>thio>-4-(trifluoromethyl)-4,5,5,5-tetrafluoro-1-pentene-1,3-dione
75790-42-0

2-<<1-(trifluoromethyl)-1,2,2,2-tetrafluoroethyl>thio>-4-(trifluoromethyl)-4,5,5,5-tetrafluoro-1-pentene-1,3-dione

propionaldehyde
123-38-6

propionaldehyde

2-Ethyl-6-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-5-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethylsulfanyl)-[1,3]dioxin-4-one
75782-04-6

2-Ethyl-6-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-5-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethylsulfanyl)-[1,3]dioxin-4-one

Conditions
ConditionsYield
100%
100%
propionaldehyde
123-38-6

propionaldehyde

benzil
134-81-6

benzil

2,3-dihydroxy-1,2-diphenyl-1-pentanone

2,3-dihydroxy-1,2-diphenyl-1-pentanone

Conditions
ConditionsYield
With titanium(III) chloride In acetone at 0℃; for 1h;100%
propionaldehyde
123-38-6

propionaldehyde

cyclopentene
142-29-0

cyclopentene

1-cyclopentyl-1-propanone
6635-67-2

1-cyclopentyl-1-propanone

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 10h;100%
propionaldehyde
123-38-6

propionaldehyde

diphenylphosphane
829-85-6

diphenylphosphane

Ph2PCH(OH)Et

Ph2PCH(OH)Et

Conditions
ConditionsYield
at 20℃; neat (no solvent);100%
at -20℃; for 0.25h;92%
propionaldehyde
123-38-6

propionaldehyde

((R)-6-Bromo-1,2,3,4-tetrahydro-naphthalen-2-yl)-((S)-1-phenyl-ethyl)-amine
175443-13-7

((R)-6-Bromo-1,2,3,4-tetrahydro-naphthalen-2-yl)-((S)-1-phenyl-ethyl)-amine

((R)-6-Bromo-1,2,3,4-tetrahydro-naphthalen-2-yl)-((S)-1-phenyl-ethyl)-propyl-amine
175443-11-5

((R)-6-Bromo-1,2,3,4-tetrahydro-naphthalen-2-yl)-((S)-1-phenyl-ethyl)-propyl-amine

Conditions
ConditionsYield
With sodium tris(acetoxy)borohydride; acetic acid In dichloromethane100%

123-38-6Related news

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The equilibrium between propionaldehyde + propane-1,1-diol + 2,4,6-triethyl-1,3,5-trioxane has been characterized, for the first time, in aqueous solution using NMR techniques. The diffusion coefficients and the molar percentages at different temperatures have been also reported.detailed

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Oxidation of propanol by chromic acid produces propionaldehyde under kinetic condition [propanol]T ≫ [Cr(VI)]T. This oxidation reaction is performed also in presence of micellar catalysts (anionic, cationic and neutral) and hetero-aromatic nitrogen bases promoters (picolinic acid, 2,2′-bipyridi...detailed

Theoretical study of Ni+ assisted CC and CH bond activations of Propionaldehyde (cas 123-38-6) in the gas phase09/25/2019

The reactions of Ni+ with propionaldehyde in the gas phase have been systematically investigated using density functional theory at the B3LYP/def2-TZVP level. The decomposition reaction mechanism has been identified. Our calculations indicated that Ni+ can assist decomposition of propionaldehyde...detailed

Dehydration of 1,2-propanediol to Propionaldehyde (cas 123-38-6) over zeolite catalysts09/24/2019

Dehydration of 1,2-propanediol has been investigated over a range of zeolite catalysts with different pore structures and acidity. The reaction forms part of a two-step process for the conversion of glycerol to propionaldehyde. The effects of reaction temperature, concentration, space velocity, ...detailed

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In the USA, oxo chemicals specialist Oxea has begun construction work on a new world-scale propanol plant at its Bay City production site in Texas. Once commissioned, ‘Propanol 2’ will add a capacity of 100 000 tonnes/year of propanol and 40 000 tonnes/year of propionaldehyde, the company says...detailed

Original ContributionQuantification of Propionaldehyde (cas 123-38-6) in breath of patients after lung transplantation09/08/2019

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Propionaldehyde (cas 123-38-6) infrared cross-sections and band strengths09/07/2019

The use of oxygenated biofuels reduces the greenhouse gas emissions; however, they also result in increased toxic aldehyde by-products, mainly formaldehyde, acetaldehyde, acrolein, and propionaldehyde. These aldehydes are carcinogenic and/or toxic and therefore it is important to understand thei...detailed

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