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126-30-7

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126-30-7 Usage

Chemical Structure

The chemical formula for Neopentyl glycol (NPG) is C5H12O2, and it is a propane-1,3-diol carrying two methyl groups at position 2.Neopentyl glycol is soluble in water, benzene, chloroform, and very soluble in ethanol and diethyl ether. Neopentylglycol (NPG) is a unique polyalcohol offering superior performance advantages in many end-use applications due to its high chemical and thermal stability. It is a unique diol offering superior performance advantages in many end-use applications. These advantages are derived from its chemical structure. The location of the hydroxyl groups on primary carbon atoms allows rapid esterification. Additionally, the two methyl groups, instead of the usual two hydrogen atoms, on the alpha carbon atom are responsible for the high chemical and thermal stability of Neopentylglycol and its derivatives.

Application

Neopentyl glycol is used in the synthesis of polyesters, paints, lubricants, and plasticizers. When used in the manufacture of polyesters, it enhances the stability of the product towards heat, light, and water. By esterification reaction with fatty or carboxylic acids, synthetic lubricating esters with reduced potential for oxidation or hydrolysis, compared to natural esters, can be produced. NPG is used primarily in base resins for coatings. In powder coating formulations, Neopentylglycol offers the additional advantage of providing small differences between the glass transition temperature and melting point. Important areas of application include general metal, appliance, metal furniture, automotive and machinery coatings. Important uses are also found in hydraulic fluids, synthetic lubricant oils, greases, metalworking fluids and aircraft engine lubricants. Other outlets include textiles, pharmaceuticals, pesticides, plasticizers and petroleum. High quality NPG is shipped as flake, molten and slurry. The high-quality NPG is the component in polyester resins for industrial coatings and fiberglass-reinforced plastics applications, and most polyester resin formulations contain NPG as the sole glycol component, or it is used in conjunction with a modifying glycol to achieve desired properties. NPG is also used in polyester polyols for polyurethane coatings for the automotive, industrial maintenance, transportation, and aerospace markets.

Chemical Properties

white solid

Uses

Different sources of media describe the Uses of 126-30-7 differently. You can refer to the following data:
1. NPG Glycol is used in the synthesis of tetraphenylporphyrins. Also used in the synthesis of Bryostatin 2, a protein kinase modulator.
2. In the manufacture of plasticizers, polyesters, as modifier of alkyd resins.
3. 2,2-Dimethyl-1,3-propanediol may be used in the synthesis of:2,2-dimethyl-1,3-propanediol cyclic phosphorochloridate2,2-dimethyl-1,3-propanediol cyclic phenylphosphonate[1′,3′-(2′,2′-dimethylpropylene)]-2-iodo-3-octyl-5-thienylboronatecyclic carbonate2,2-dimethyl-1,3-propanediol bis(cyclic-2,2-dimethyltrimethylene phosphite)

General Description

White crystalline solid. Melting point 130°C.

Air & Water Reactions

Soluble in water.

Reactivity Profile

2,2-Dimethyl-1,3-propanediol may generate toxic gases in combination of with alkali metals, nitrides, and strong reducing agents. Reacts with inorganic acids and carboxylic acids to form esters plus water. Converted to aldehydes or acids by oxidizing agents. May initiate the polymerization of isocyanates and epoxides.

Health Hazard

May be harmful by ingestion or skin absorption. Causes eye and skin irritation. Material is irritating to mucous membrane and upper respiratory tract. INHALATION: Call for medical aid. Remove to fresh air. If breathing has stopped, give artificial respiration. If breathing is difficult, give oxygen.

Fire Hazard

Special Hazards of Combustion Products: Emits toxic fumes under fire condition.

Flammability and Explosibility

Nonflammable

Purification Methods

Crystallise the diol from *benzene or acetone/water (1:1). [Beilstein 1 IV 2551.]

Check Digit Verification of cas no

The CAS Registry Mumber 126-30-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 6 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 126-30:
(5*1)+(4*2)+(3*6)+(2*3)+(1*0)=37
37 % 10 = 7
So 126-30-7 is a valid CAS Registry Number.
InChI:InChI=1/C5H12O2/c1-2-5(3-6)4-7/h5-7H,2-4H2,1H3

126-30-7 Well-known Company Product Price

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  • (Code)Product description
  • CAS number
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  • Detail
  • Alfa Aesar

  • (A10340)  2,2-Dimethyl-1,3-propanediol, 99%   

  • 126-30-7

  • 250g

  • 258.0CNY

  • Detail
  • Alfa Aesar

  • (A10340)  2,2-Dimethyl-1,3-propanediol, 99%   

  • 126-30-7

  • 500g

  • 312.0CNY

  • Detail
  • Alfa Aesar

  • (A10340)  2,2-Dimethyl-1,3-propanediol, 99%   

  • 126-30-7

  • 2500g

  • 572.0CNY

  • Detail
  • Aldrich

  • (538256)  2,2-Dimethyl-1,3-propanediol  99%

  • 126-30-7

  • 538256-25G

  • 259.74CNY

  • Detail
  • Aldrich

  • (538256)  2,2-Dimethyl-1,3-propanediol  99%

  • 126-30-7

  • 538256-500G

  • 329.94CNY

  • Detail
  • Aldrich

  • (538256)  2,2-Dimethyl-1,3-propanediol  99%

  • 126-30-7

  • 538256-3KG

  • 971.10CNY

  • Detail

126-30-7SDS

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 2,2-Dimethyl-1,3-propanediol

1.2 Other means of identification

Product number -
Other names Neopentyl glycol (NPG)

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Dyes,Functional fluids (closed systems),Intermediates,Lubricants and lubricant additives,Paint additives and coating additives not described by other categories,Processing aids, not otherwise listed,Processing aids, specific to petroleum production
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:126-30-7 SDS

126-30-7Synthetic route

formaldehyd
50-00-0

formaldehyd

isobutyraldehyde
78-84-2

isobutyraldehyde

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With hydrogen; nickel; triethylamine; calcium hydroxide at 90 - 180℃; under 750.075 - 75007.5 Torr; Temperature; Reagent/catalyst; Pressure;99%
With water; methyllithium; calcium carbonate
With potassium hydroxide
2-(2,6-bis(trifluoromethyl)phenyl)-5,5-dimethyl-1,3,2-dioxaborinane

2-(2,6-bis(trifluoromethyl)phenyl)-5,5-dimethyl-1,3,2-dioxaborinane

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran for 0.5h; Reflux;99%
2,2-bis(4-oxopentyl 2',2'-dimethylpropylene ketal)piperidine
108818-51-5

2,2-bis(4-oxopentyl 2',2'-dimethylpropylene ketal)piperidine

A

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

B

5-(6-Methyl-1,2,3,4,8,9-hexahydro-quinolizin-9a-yl)-pentan-2-one
108818-53-7

5-(6-Methyl-1,2,3,4,8,9-hexahydro-quinolizin-9a-yl)-pentan-2-one

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran for 1h;A 96.2%
B 94.3%
3-Methoxymethoxy-2,2-dimethyl-propan-1-ol
89449-95-6

3-Methoxymethoxy-2,2-dimethyl-propan-1-ol

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With (i-PrS)BBr In dichloromethane at -78℃;91%
2,2-dimethyl-3-hydroxypropionaldehyde
597-31-9

2,2-dimethyl-3-hydroxypropionaldehyde

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran90%
With aluminium amalgam; water
With sodium amalgam; water
methyl magnesium iodide
917-64-6

methyl magnesium iodide

2,2-dimethyl-3-hydroxypropionaldehyde
597-31-9

2,2-dimethyl-3-hydroxypropionaldehyde

diethyl ether
60-29-7

diethyl ether

A

2,2-dimethyl-1,3-butanediol
76-35-7

2,2-dimethyl-1,3-butanediol

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethyl-3-hydroxypropionaldehyde
597-31-9

2,2-dimethyl-3-hydroxypropionaldehyde

methylmagnesium iodide

methylmagnesium iodide

A

2,2-dimethyl-1,3-butanediol
76-35-7

2,2-dimethyl-1,3-butanediol

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethyl-3-hydroxypropionaldehyde
597-31-9

2,2-dimethyl-3-hydroxypropionaldehyde

A

formic acid
64-18-6

formic acid

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With formaldehyd; potassium carbonate
2,2-dimethyl-3-hydroxypropionaldehyde
597-31-9

2,2-dimethyl-3-hydroxypropionaldehyde

A

3-Hydroxy-2,2-dimethylpropanoic acid
4835-90-9

3-Hydroxy-2,2-dimethylpropanoic acid

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With potassium carbonate
With potassium carbonate
2,2-dimethyl-3-hydroxypropionaldehyde
597-31-9

2,2-dimethyl-3-hydroxypropionaldehyde

A

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

B

isobutyric Acid
79-31-2

isobutyric Acid

Conditions
ConditionsYield
With potassium carbonate; isobutyraldehyde
2,2-bis(iodomethyl)-1,3-propanediol
3296-88-6

2,2-bis(iodomethyl)-1,3-propanediol

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With palladium on barium sulfate; hydrogen; magnesium oxide at 50 - 55℃; Reagens 4: Alkohol; Reagens 5:Pyridin;
[1-(hydroxymethyl)cyclopropyl]methanol
39590-81-3

[1-(hydroxymethyl)cyclopropyl]methanol

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In methanol Product distribution;
1.3-butanediol
18826-95-4, 107-88-0

1.3-butanediol

2,2-dimethylpropane-1,3-diol cyclic dimethylsilyl ether
14760-11-3

2,2-dimethylpropane-1,3-diol cyclic dimethylsilyl ether

A

2,2,4-Trimethyl-1,3-dioxa-2-silacyclohexane
14903-76-5

2,2,4-Trimethyl-1,3-dioxa-2-silacyclohexane

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
In 1,4-dioxane at 20℃;A 43 % Chromat.
B n/a
2,2-dimethylpropane-1,3-diol cyclic dimethylsilyl ether
14760-11-3

2,2-dimethylpropane-1,3-diol cyclic dimethylsilyl ether

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With fluorosulphonic acid at -70℃; Product distribution;
Bromomethyl-dimethyl-(2-methyl-allyloxy)-silane
90106-98-2

Bromomethyl-dimethyl-(2-methyl-allyloxy)-silane

A

2-methyl-1,4-butandiol
2938-98-9

2-methyl-1,4-butandiol

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With dihydrogen peroxide; tri-n-butyl-tin hydride; 2,2'-azobis(isobutyronitrile) 1.) benzene, reflux, 1-2 h; 2.) MeOH, THF, Na2CO3, reflux 5 h; Yield given. Multistep reaction. Yields of byproduct given;
5-phenyl-8,8-dimethyl-1,4,6,10-tetraoxa-5-phosphaspiro<4,5>decane
80317-87-9

5-phenyl-8,8-dimethyl-1,4,6,10-tetraoxa-5-phosphaspiro<4,5>decane

A

mono-(2-hydroxyethyl) phenylphosphonate
7671-08-1

mono-(2-hydroxyethyl) phenylphosphonate

B

2-hydroxyethyl-(2,2-dimethyl-3-hydroxypropyl) phenylphosphonate

2-hydroxyethyl-(2,2-dimethyl-3-hydroxypropyl) phenylphosphonate

C

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
oxonium In water at 25℃; Rate constant; Mechanism; Thermodynamic data; other cond., other catalysts, various pH values;
2,5,5-trimethyl-2-isopropoxy-2-sila-1,3-dioxacyclohexane
84566-29-0

2,5,5-trimethyl-2-isopropoxy-2-sila-1,3-dioxacyclohexane

A

methyltrifluorosilane
373-74-0

methyltrifluorosilane

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

C

isopropyl alcohol
67-63-0

isopropyl alcohol

Conditions
ConditionsYield
With fluorosulphonic acid at -70℃; Product distribution;
1-(2,2-dimethyl-3-hydroxypropoxy)-2,4,6-trinitrobenzene
66909-11-3

1-(2,2-dimethyl-3-hydroxypropoxy)-2,4,6-trinitrobenzene

A

sodium picrate
3324-58-1

sodium picrate

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With sodium hydroxide In water at 25℃; Rate constant; different concentrations of very dilute NaOH;
1-(2,2-dimethyl-3-hydroxypropoxy)-2,4-dinitronaphthalene
79309-08-3

1-(2,2-dimethyl-3-hydroxypropoxy)-2,4-dinitronaphthalene

A

2,4-dinitro-[1]naphthol; sodium-(2.4-dinitro-naphtholate-(1))
887-79-6

2,4-dinitro-[1]naphthol; sodium-(2.4-dinitro-naphtholate-(1))

B

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With sodium hydroxide In water at 25℃; Rate constant; different concentations of NaOH;
2-isopropoxy-4,4-dimethyl-[1,2]oxaborolane

2-isopropoxy-4,4-dimethyl-[1,2]oxaborolane

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

Conditions
ConditionsYield
With sodium hydroxide; dihydrogen peroxide In water at 20℃; for 2h; Oxidation;
2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

5,5-dimethyl-1,3-dioxaphosphorinan-2-oxide
4090-60-2

5,5-dimethyl-1,3-dioxaphosphorinan-2-oxide

Conditions
ConditionsYield
With phosphonic Acid In toluene for 18h; Dean-Stark; Reflux;100%
With water; phosphorus trichloride In toluene at 35 - 110℃;99%
With water; phosphorus trichloride In toluene at 40 - 120℃; for 3.5h;80.4%
2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

p-toluenesulfonyl chloride
98-59-9

p-toluenesulfonyl chloride

1,3-bis((p-toluenesulfonyl)oxy)-2,2-dimethylpropane
22308-12-9

1,3-bis((p-toluenesulfonyl)oxy)-2,2-dimethylpropane

Conditions
ConditionsYield
With pyridine at 4℃;100%
With pyridine99%
In pyridine96%
2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

phenylboronic acid
98-80-6

phenylboronic acid

5,5-dimethyl-2-phenyl-1,3,2-dioxaborinane
5123-13-7

5,5-dimethyl-2-phenyl-1,3,2-dioxaborinane

Conditions
ConditionsYield
With magnesium sulfate In diethyl ether at 25℃; for 20h; Inert atmosphere;100%
In tetrahydrofuran for 0.666667h; Inert atmosphere; Dean-Stark; Reflux;100%
With magnesium sulfate In diethyl ether at 20℃; for 20h;100%
Tetrahydro-4H-pyran-4-one
29943-42-8

Tetrahydro-4H-pyran-4-one

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

3,3-Dimethyl-1,5,9-trioxa-spiro[5.5]undecane
131067-46-4

3,3-Dimethyl-1,5,9-trioxa-spiro[5.5]undecane

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 1h; Heating;100%
With hydrogen cation In benzene
2-bromo-3,5-dimethoxy-benzaldehyde
85565-93-1

2-bromo-3,5-dimethoxy-benzaldehyde

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2-(2-bromo-3,5-dimethoxyphenyl)-5,5-dimethyl-1,3-dioxane
134276-83-8

2-(2-bromo-3,5-dimethoxyphenyl)-5,5-dimethyl-1,3-dioxane

Conditions
ConditionsYield
100%
cis-2-hydroxy-1,5,5-trimethylspiro<5.5>undecan-9-one
70556-68-2

cis-2-hydroxy-1,5,5-trimethylspiro<5.5>undecan-9-one

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

(7RS,8SR)-8-hydroxy-7,11,11-trimethylspiro<5.5>undecan-3-one (2,2-dimethylpropylidene) acetal

(7RS,8SR)-8-hydroxy-7,11,11-trimethylspiro<5.5>undecan-3-one (2,2-dimethylpropylidene) acetal

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 2h; Heating;100%
4-pyridylboronic acid
1692-15-5

4-pyridylboronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

4-(5,5-dimethyl-1,3,2-dioxaborinane-2-yl)pyridine
869901-52-0

4-(5,5-dimethyl-1,3,2-dioxaborinane-2-yl)pyridine

Conditions
ConditionsYield
With 4 A molecular sieve In 1,4-dioxane for 12h; Heating;100%
In toluene for 3h; Reflux;90%
In toluene at 130℃; for 12h; Inert atmosphere;84%
(5-bromothiophene-2-yl)boronic acid
162607-17-2

(5-bromothiophene-2-yl)boronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl [5-bromo-thiophen-2-yl] boronate

2,2-dimethylpropane-1,3-diyl [5-bromo-thiophen-2-yl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
3-bromo-2-methoxy-5-methyl phenylboronic acid

3-bromo-2-methoxy-5-methyl phenylboronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl [3-bromo-2-methoxy-5-methylphenyl] boronate
884010-21-3

2,2-dimethylpropane-1,3-diyl [3-bromo-2-methoxy-5-methylphenyl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
5-bromobenzo[b]thiophene-2-boronic acid

5-bromobenzo[b]thiophene-2-boronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl (5-bromo-benzo[b]thiophen-2-yl) boronate

2,2-dimethylpropane-1,3-diyl (5-bromo-benzo[b]thiophen-2-yl) boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
(4-bromonaphthalene-1-yl)boronic acid

(4-bromonaphthalene-1-yl)boronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl [4-bromo-naphthalenyl] boronate
884010-18-8

2,2-dimethylpropane-1,3-diyl [4-bromo-naphthalenyl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
C13H11BBrClO3

C13H11BBrClO3

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl [4-(3-bromobenzyloxy)-3-chlorophenyl] boronate
884010-19-9

2,2-dimethylpropane-1,3-diyl [4-(3-bromobenzyloxy)-3-chlorophenyl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
4-Bromophenylboronic acid
5467-74-3

4-Bromophenylboronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2-(4-bromophenyl)-5,5-dimethyl-1,3,2-dioxaborinane
183677-71-6

2-(4-bromophenyl)-5,5-dimethyl-1,3,2-dioxaborinane

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
With magnesium sulfate In diethyl ether at 20℃; for 20h;100%
With magnesium sulfate In dichloromethane Inert atmosphere;99%
5-bromo-2-methoxyphenylboronic acid
89694-45-1

5-bromo-2-methoxyphenylboronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl [5-bromo-2-methoxyphenyl] boronate
884010-20-2

2,2-dimethylpropane-1,3-diyl [5-bromo-2-methoxyphenyl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
(3-bromophenyl)boronic acid
89598-96-9

(3-bromophenyl)boronic acid

2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2,2-dimethylpropane-1,3-diyl [3-bromophenyl] boronate
635305-38-3

2,2-dimethylpropane-1,3-diyl [3-bromophenyl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
In tetrahydrofuran for 0.666667h; Reflux; Dean-Stark;93%
In toluene at 20℃; for 2h;86%
In diethyl ether
In tetrahydrofuran for 0.666667h; Reflux; Dean-Stark;
2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

(2-bromophenyl)boronic acid
244205-40-1

(2-bromophenyl)boronic acid

2,2-dimethylpropane-1,3-diyl [2-bromophenyl] boronate
884010-16-6

2,2-dimethylpropane-1,3-diyl [2-bromophenyl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
In dichloromethane at 20℃; for 3.5h;100%
In benzene Reflux;
In diethyl ether at 20℃; Inert atmosphere; Molecular sieve;
2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

{4'‐bromo‐[1,1'‐biphenyl]‐4‐yl}boronic acid
480996-05-2

{4'‐bromo‐[1,1'‐biphenyl]‐4‐yl}boronic acid

2,2-dimethylpropane-1,3-diyl [4'-bromo-biphenyl-4-yl] boronate
884010-17-7

2,2-dimethylpropane-1,3-diyl [4'-bromo-biphenyl-4-yl] boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
2,2-Dimethyl-1,3-propanediol
126-30-7

2,2-Dimethyl-1,3-propanediol

2-borono-5-bromo-1H-indole-1-carboxylic acid-1-(1,1-dimethylethyl) ester
475102-13-7

2-borono-5-bromo-1H-indole-1-carboxylic acid-1-(1,1-dimethylethyl) ester

2,2-dimethylpropane-1,3-diyl (5-bromo-1-tert-butoxycarbonyl-indol-2-yl) boronate

2,2-dimethylpropane-1,3-diyl (5-bromo-1-tert-butoxycarbonyl-indol-2-yl) boronate

Conditions
ConditionsYield
In toluene for 1h; Heating;100%
Esterification;

126-30-7Related news

Reactions of 2,2-Dimethyl-1,3-propanediol (cas 126-30-7) with zeolites: Correlation of selectivity with acidity09/24/2019

The gas phase reaction of 2,2-dimethyl-1,3-propandiol over ion (alkali) exchanged zeolites gives 2-methyl-propanal (I) (cleavage product), 2-methyl-butanal (II) (rearrangement product) and traces of 3,3-dimethyl-oxetane (cyclisation). The selectivities to (I) and (II) correlated apparently with ...detailed

Regular ArticlesLow-temperature thermal properties of 2,2-Dimethyl-1,3-propanediol (cas 126-30-7) and its deuterated analogues09/10/2019

Heat capacities of 2,2-dimethyl-1,3-propanediol(CH3)2C(CH2OH)2 were measured in the temperature range between T =  13 K and T =  350 K using an adiabatic calorimeter. The compound underwent a first-order phase transition at T =  (314.5  ±  0.1) K. The enthalpy and the entropy of transition were...detailed

126-30-7Relevant articles and documents

-

Nikoletic,M. et al.

, p. 649 - 660 (1967)

-

A strategy for generating alkyl radicals from aliphatic esters and lactones via sequential hydrolysis and photoinduced decarboxylation

Saito, Hikaru,Kanetake, Takayuki,Osaka, Kazuyuki,Maeda, Kousuke,Morita, Toshio,Yoshimi, Yasuharu

, p. 1645 - 1648 (2015)

Sequential hydrolysis and photoinduced decarboxylation of methyl aliphatic esters lead to efficient generation of alkyl radicals under mild conditions. The generated alkyl radicals react with a variety of reagents to produce addition, reduction, and substitution products. In addition, the new tin and halogen free process for alkyl radical generation is applicable to a variety of aliphatic esters including those of dipeptides, steroids, saccharides, and lactones.

-

Apel,Tollens

, (1896)

-

-

Campbell,Rydon

, p. 3002,3005 (1953)

-

-

Wessely

, p. 66 (1901)

-

Preparation method of hydroxypivalaldehyde and application of hydroxypivalaldehyde in preparation of neopentyl glycol

-

Paragraph 0039; 0042-0044; 0047-0049; 0052-0053, (2021/02/09)

The invention provides a preparation method of 2,2-dimethyl-3-hydroxypropanal and application thereof in preparation of neopentyl glycol. The 2,2-dimethyl-3-hydroxypropanal is prepared from an epoxy compound by a hydroformylation method. The method has the advantages of good atom economy, low raw material cost, no wastewater generation, and high yield. The invention also provides the application of the 2,2-dimethyl-3-hydroxypropanal in preparation of the neopentyl glycol. The application method circumvents the disadvantages of the conventional methods in the prior art, the reaction system is simple, and the industrial application prospect is excellent.

Photo-Induced ortho-C-H Borylation of Arenes through in Situ Generation of Rhodium(II) Ate Complexes

Araujo Dias, Ant?nio Junio,Nagashima, Yuki,Tanaka, Jin,Tanaka, Ken

supporting information, p. 11325 - 11331 (2021/08/03)

Photoinduced in situ "oxidation"of half-sandwich metal complexes to "high-valent"cationic metal complexes has been used to accelerate catalytic reactions. Here, we report the unprecedented photoinduced in situ "reduction"of half-sandwich metal [Rh(III)] complexes to "low-valent"anionic metal [Rh(II)] ate complexes, which facilitate ligand exchange with electron-deficient elements (diboron). This strategy was realized by using a functionalized cyclopentadienyl (CpA3) Rh(III) catalyst we developed, which enabled the basic group-directed room temperature ortho-C-H borylation of arenes.

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