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674-82-8 Usage

Health Hazard

TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Inhalation or contact with some of these materials will irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Reactivity Profile

DIKETENE is a very reactive dimer, Acetyl ketene may undergo a spontaneous decomposition followed by explosion or ignition [Vervalin, 1973, p.86]. In the presence of bases, amines, mineral acids or Lewis acids a violent polymerization will occur, accompanied by gas evolution [Zdenek, F. et al., Czech Pat. 156 584, 1975].

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Air & Water Reactions

Highly flammable. Slightly soluble in water.

General Description

A colorless liquid with a disagreeable odor. Slightly less dense than water. Flash point 90°F. Irritates skin and eyes. Used to make paints and pharmaceuticals.
InChI:InChI=1/C4H4O2/c1-4(6)2-3-5/h2H,1H3

674-82-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name Acetyl ketene

1.2 Other means of identification

Product number -
Other names ACETYLKETENE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Intermediates
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:674-82-8 SDS

674-82-8Synthetic route

bis(triphenylphosphine)-3,3-dimethylnickelacyclobutane

bis(triphenylphosphine)-3,3-dimethylnickelacyclobutane

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

bis(triphenylphosphine)nickel(0) dicarbonyl
13007-90-4

bis(triphenylphosphine)nickel(0) dicarbonyl

C

isobutene
115-11-7

isobutene

Conditions
ConditionsYield
With carbon monoxide In toluene High Pressure; 5 atm CO, 50°C, 1 h; pptn. of complex;A 8%
B 83%
C n/a
Ketene
463-51-4

Ketene

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Conditions
ConditionsYield
With N,N,N,N,-tetramethylethylenediamine In hexane at -15 - -10℃; for 3.5h;75%
Ketene
463-51-4

Ketene

acetic anhydride
108-24-7

acetic anhydride

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Ketene
463-51-4

Ketene

ethylmagnesium bromide
925-90-6

ethylmagnesium bromide

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

N-acetylphthalimide
1971-49-9

N-acetylphthalimide

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Conditions
ConditionsYield
at 325℃;
9-acetylcarbazole
574-39-0

9-acetylcarbazole

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Conditions
ConditionsYield
at 110℃; under 15 Torr;
Ketene
463-51-4

Ketene

buta-1,3-diene
106-99-0

buta-1,3-diene

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

3-vinylcyclobutanone
66166-61-8

3-vinylcyclobutanone

Conditions
ConditionsYield
With nitrogen at 100℃;
triethylamine
121-44-8

triethylamine

acetyl chloride
75-36-5

acetyl chloride

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Conditions
ConditionsYield
With diethyl ether
acetyl chloride
75-36-5

acetyl chloride

trimethylamine
75-50-3

trimethylamine

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Conditions
ConditionsYield
With diethyl ether
Ketene
463-51-4

Ketene

acetone
67-64-1

acetone

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

dichloromethane
75-09-2

dichloromethane

carbon monoxide
201230-82-2

carbon monoxide

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Conditions
ConditionsYield
Pd(PCy3)2(dba) In benzene-d6 at 25℃; under 22501.8 Torr;
3-oxo-N-(p-tolyl)butanamide
2415-85-2

3-oxo-N-(p-tolyl)butanamide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

p-toluidine
106-49-0

p-toluidine

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
4'-Chloroacetoacetanilide
101-92-8

4'-Chloroacetoacetanilide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

4-chloro-aniline
106-47-8

4-chloro-aniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
N-(4-bromophenyl)-3-oxobutyramide
38418-24-5

N-(4-bromophenyl)-3-oxobutyramide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

4-bromo-aniline
106-40-1

4-bromo-aniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
4'-methoxyacetoacetanilide
5437-98-9

4'-methoxyacetoacetanilide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

4-methoxy-aniline
104-94-9

4-methoxy-aniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
3-oxo-N-m-tolylbutanamide
25233-46-9

3-oxo-N-m-tolylbutanamide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

1-amino-3-methylbenzene
108-44-1

1-amino-3-methylbenzene

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
N-(3'-methoxyphenyl)-3-oxobutanamide
25233-47-0

N-(3'-methoxyphenyl)-3-oxobutanamide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

m-Anisidine
536-90-3

m-Anisidine

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
3'-nitroacetoacetanilide
25233-49-2

3'-nitroacetoacetanilide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

3-nitro-aniline
99-09-2

3-nitro-aniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
3'-chloroacetoacetanilide
2415-87-4

3'-chloroacetoacetanilide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

3-chloro-aniline
108-42-9

3-chloro-aniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
N-(3-bromo-phenyl)-3-oxo-butyramide
61579-06-4

N-(3-bromo-phenyl)-3-oxo-butyramide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

3-bromoaniline
591-19-5

3-bromoaniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
N-(3-cyanophenyl)-3-oxobutanamide

N-(3-cyanophenyl)-3-oxobutanamide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

m-cyanoaniline
2237-30-1

m-cyanoaniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
N-phenylacetoacetamide
102-01-2

N-phenylacetoacetamide

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

aniline
62-53-3

aniline

Conditions
ConditionsYield
In cyclohexane at 25℃; Equilibrium constant;
1,2-propanediene
463-49-0

1,2-propanediene

p-benzoquinone
106-51-4

p-benzoquinone

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

Spiro<3.5>nona-5,8-dien-2,7-dion
52727-24-9

Spiro<3.5>nona-5,8-dien-2,7-dion

C

3-Methylene-1-oxa-spiro[3.5]nona-5,8-dien-7-one
115077-69-5

3-Methylene-1-oxa-spiro[3.5]nona-5,8-dien-7-one

D

C15H12O4
115077-67-3

C15H12O4

Conditions
ConditionsYield
In trichlorofluoromethane at -25℃; under 760 Torr; for 1h; Irradiation; Laser VIS-irradiation, 455-515 nm;A n/a
B n/a
C 146 mg
D 6.2 mg
Ketene
463-51-4

Ketene

acetaldehyde
75-07-0

acetaldehyde

H3BO3

H3BO3

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

C

3-penten-2-one
625-33-2

3-penten-2-one

Ketene
463-51-4

Ketene

acetaldehyde
75-07-0

acetaldehyde

ZnCl2

ZnCl2

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

C

3-penten-2-one
625-33-2

3-penten-2-one

Ketene
463-51-4

Ketene

sulfuric acid
7664-93-9

sulfuric acid

acetone
67-64-1

acetone

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

Isopropenyl acetate
108-22-5

Isopropenyl acetate

C

acetic anhydride
108-24-7

acetic anhydride

D

4-oxo-2.2.6-trimethyl-1.3-dioxime

4-oxo-2.2.6-trimethyl-1.3-dioxime

Conditions
ConditionsYield
at 55℃;
Ketene
463-51-4

Ketene

acetone
67-64-1

acetone

ZnCl2

ZnCl2

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

Isopropenyl acetate
108-22-5

Isopropenyl acetate

C

acetic anhydride
108-24-7

acetic anhydride

D

4-oxo-2.2.6-trimethyl-1.3-dioxime

4-oxo-2.2.6-trimethyl-1.3-dioxime

Conditions
ConditionsYield
at 100℃;
Ketene
463-51-4

Ketene

water
7732-18-5

water

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

acetone
67-64-1

acetone

n-dodecanoyl chloride
112-16-3

n-dodecanoyl chloride

triethylamine
121-44-8

triethylamine

acetyl chloride
75-36-5

acetyl chloride

A

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

B

dimer(ic) decylketene

dimer(ic) decylketene

C

mixed diketene C14H24O2

mixed diketene C14H24O2

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

benzylamine
100-46-9

benzylamine

N-benzyl-3-oxobutanamide
882-36-0

N-benzyl-3-oxobutanamide

Conditions
ConditionsYield
In dichloromethane at 0 - 20℃;100%
In dichloromethane at 0 - 20℃;100%
In dichloromethane at 0 - 20℃;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

2-(N,N-dimethylamino)ethanol
108-01-0

2-(N,N-dimethylamino)ethanol

acetoacetic acid 2-dimethylamino-ethyl ester
6131-49-3

acetoacetic acid 2-dimethylamino-ethyl ester

Conditions
ConditionsYield
With dmap In tetrahydrofuran at 65℃; for 0.5h;100%
at 70 - 71℃; for 5h;99%
With triethylamine at 95℃; for 3h;84%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

cinnamylamine
4360-51-4

cinnamylamine

3-oxo-N-(3-phenyl-2-propen-1-yl) butylamide
26226-10-8

3-oxo-N-(3-phenyl-2-propen-1-yl) butylamide

Conditions
ConditionsYield
With triethylamine In toluene at 70℃; for 3h;100%
In diethyl ether
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

diethylamine
109-89-7

diethylamine

N,N-diethyl-3-oxobutanamide
2235-46-3

N,N-diethyl-3-oxobutanamide

Conditions
ConditionsYield
In tetrahydrofuran at 0℃; Inert atmosphere;100%
In tetrahydrofuran at 0℃; for 0.0833333h; Inert atmosphere;100%
With triethylamine In methanol; toluene at 0℃; for 2h;95%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

cyclohexanol
108-93-0

cyclohexanol

cyclohexyl 3-oxobutanoate
6947-02-0

cyclohexyl 3-oxobutanoate

Conditions
ConditionsYield
With sodium acetate In tetrahydrofuran for 2h; Reflux;100%
With triethylamine In chloroform for 10h; Ambient temperature;96.7%
With triethylamine
With dmap
piperidine
110-89-4

piperidine

4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

1-(piperidin-1-yl)-butane-1,3-dione
1128-87-6

1-(piperidin-1-yl)-butane-1,3-dione

Conditions
ConditionsYield
In tetrahydrofuran at 20℃;100%
for 2h; Yield given;
In toluene at 100℃; for 1h;
In tert-butyl methyl ether at -5 - 0℃; for 1h;49.55 g
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

cycl-isopropylidene malonate
2033-24-1

cycl-isopropylidene malonate

2,2-dimethyl-5-(1-hydroxy-3-oxobutylidene)-1,3-dioxane-4,6-dione
84257-12-5

2,2-dimethyl-5-(1-hydroxy-3-oxobutylidene)-1,3-dioxane-4,6-dione

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0 - 20℃; for 2h;100%
Stage #1: 4-methyleneoxetan-2-one; cycl-isopropylidene malonate With triethylamine In dichloromethane at 0 - 20℃; for 2h;
Stage #2: With hydrogenchloride In dichloromethane; water
100%
With triethylamine In dichloromethane at 20℃;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

methylthiol
74-93-1

methylthiol

4-Methylsulfanylmethyl-oxetan-2-one
108615-97-0

4-Methylsulfanylmethyl-oxetan-2-one

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile) In diethyl ether for 2h; Ambient temperature; Irradiation;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

1-butanethiol
109-79-5

1-butanethiol

4-(n-Butylthiomethyl)oxetan-2-on
72749-29-2

4-(n-Butylthiomethyl)oxetan-2-on

Conditions
ConditionsYield
In diethyl ether at 0℃; for 0.5h;100%
With sulfuric acid In diethyl ether for 2h; Ambient temperature;72%
In diethyl ether at 0 - 5℃;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Octanethiol
111-88-6

Octanethiol

4-Octylsulfanylmethyl-oxetan-2-one
108615-99-2

4-Octylsulfanylmethyl-oxetan-2-one

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile) In Petroleum ether at 25℃; for 1h;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

Cyclopropylmethanol
2516-33-8

Cyclopropylmethanol

cyclopropylmethyl 3-oxobutanoate
86780-84-9

cyclopropylmethyl 3-oxobutanoate

Conditions
ConditionsYield
With triethylamine In chloroform for 10h; Ambient temperature;100%
With sodium hydride at 70 - 80℃; for 2h;93%
With sodium acetate for 16h; Ambient temperature;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(-)-menthol
2216-51-5

(-)-menthol

(L)-menthyl 3-oxobutyrate
59557-05-0

(L)-menthyl 3-oxobutyrate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 3h;100%
With sodium acetate In acetonitrile for 2h; Heating;96%
With triethylamine In acetone for 2h; Heating;92%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

benzyl 2-(2-ethoxy-2-ethoxyethyl)-1-hydrazinecarboxylate
4503-58-6

benzyl 2-(2-ethoxy-2-ethoxyethyl)-1-hydrazinecarboxylate

benzyl 2-acetoacetyl-2-(ethoxycarbonylmethyl)hydrazine-1-carboxylate
98381-06-7

benzyl 2-acetoacetyl-2-(ethoxycarbonylmethyl)hydrazine-1-carboxylate

Conditions
ConditionsYield
With triethylamine In benzene for 16h; Heating;100%
In benzene Yield given;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

isopropoxyamine hydrochloride
4490-81-7

isopropoxyamine hydrochloride

N-Isopropoxy-3-oxo-butyramide
133146-80-2

N-Isopropoxy-3-oxo-butyramide

Conditions
ConditionsYield
With triethylamine In methanol; toluene at 0 - 5℃; for 0.5h;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(-)-8-phenylmenthol
65253-04-5

(-)-8-phenylmenthol

(+)-(1R,2S,5R)-8-phenylmenthyl 3-oxobutanoate
90358-31-9

(+)-(1R,2S,5R)-8-phenylmenthyl 3-oxobutanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 3h;100%
With triethylamine In acetone for 3h; Heating;95%
With sodium acetate In chloroform for 1h; Heating;85.9%
With sodium acetate In tetrahydrofuran for 2h; Heating;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

2-<4-(4-benzhydryl-1-piperazinyl)phenyl>ethyl alcohol
116308-40-8

2-<4-(4-benzhydryl-1-piperazinyl)phenyl>ethyl alcohol

2-<4-(4-benzhydryl-1-piperazinyl)phenyl>ethyl acetoacetate
116308-41-9

2-<4-(4-benzhydryl-1-piperazinyl)phenyl>ethyl acetoacetate

Conditions
ConditionsYield
With dmap In tetrahydrofuran 1) ice-salt cooling, 30 min, 2) r.t.;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

phenethylamine
64-04-0

phenethylamine

3-oxo-N-(2-phenylethyl)butanamide
2044-66-8

3-oxo-N-(2-phenylethyl)butanamide

Conditions
ConditionsYield
In diethyl ether Reflux;100%
In diethyl ether for 3h; Heating / reflux;93%
In methanol at 0℃; Inert atmosphere;46%
In methanol for 3h; Ambient temperature;
In methanol at 0℃; Inert atmosphere;
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

methyl 3-<(benzyloxy)amino>-2-propionate
81790-27-4

methyl 3-<(benzyloxy)amino>-2-propionate

3-[Benzyloxy-(3-oxo-butyryl)-amino]-2-(4-benzyloxy-phenyl)-propionic acid methyl ester
81790-28-5

3-[Benzyloxy-(3-oxo-butyryl)-amino]-2-(4-benzyloxy-phenyl)-propionic acid methyl ester

Conditions
ConditionsYield
With dmap; triethylamine In tetrahydrofuran 1.) -78 deg C, 30 min, 2.) 0 deg C, 30 min;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(S)-methyl 5,5-dimethyl-1,3-thiazolidine-4-carboxylate
70491-75-7

(S)-methyl 5,5-dimethyl-1,3-thiazolidine-4-carboxylate

methyl (4S)-5,5-dimethyl-3-(3-oxobutanoyl)thiazolidine-4-carboxylate
153823-10-0

methyl (4S)-5,5-dimethyl-3-(3-oxobutanoyl)thiazolidine-4-carboxylate

Conditions
ConditionsYield
With triethylamine In dichloromethane for 15h; Heating;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

1-benzyl-3-pyrrolidinol
775-15-5

1-benzyl-3-pyrrolidinol

1-benzyl-3-acetoacetyloxypyrrolidine
71863-54-2

1-benzyl-3-acetoacetyloxypyrrolidine

Conditions
ConditionsYield
at 70 - 80℃; for 1h;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

1-benzyl-3-hydroxypiperidine
14813-01-5

1-benzyl-3-hydroxypiperidine

1-benzylpiperidin-3-yl acetoacetate
85387-34-4

1-benzylpiperidin-3-yl acetoacetate

Conditions
ConditionsYield
With triethylamine In chloroform for 10h; Ambient temperature;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(1R,2R,3R)-3-Benzyloxy-2-(tert-butyl-dimethyl-silanyloxy)-cyclohexanol

(1R,2R,3R)-3-Benzyloxy-2-(tert-butyl-dimethyl-silanyloxy)-cyclohexanol

3-Oxo-butyric acid (1R,2S,3R)-3-benzyloxy-2-(tert-butyl-dimethyl-silanyloxy)-cyclohexyl ester

3-Oxo-butyric acid (1R,2S,3R)-3-benzyloxy-2-(tert-butyl-dimethyl-silanyloxy)-cyclohexyl ester

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran for 9h; Ambient temperature;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

3,5-dimethyl-hexa-1,4-dien-3-ol
38552-68-0

3,5-dimethyl-hexa-1,4-dien-3-ol

3-oxo-butyric acid 1,3-dimethyl-1-vinyl-but-2-enyl ester
664343-03-7

3-oxo-butyric acid 1,3-dimethyl-1-vinyl-but-2-enyl ester

Conditions
ConditionsYield
With dmap In diethyl ether at 23℃;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

[13C]methanol
14742-26-8

[13C]methanol

[13C]methyl 3-oxobutanoate

[13C]methyl 3-oxobutanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane for 2h; Heating;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

N,N-diethylethylenediamine
100-36-7

N,N-diethylethylenediamine

N-(2-(diethylamino)ethyl)-3-oxobutanamide
590424-03-6

N-(2-(diethylamino)ethyl)-3-oxobutanamide

Conditions
ConditionsYield
In various solvent(s)100%
In dichloromethane at 0 - 20℃; for 0.5h;100%
In tert-butyl methyl ether at 0 - 20℃;93%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

3-oxo-N-(3-phenyl-2-propen-1-yl)-butylamide

3-oxo-N-(3-phenyl-2-propen-1-yl)-butylamide

Conditions
ConditionsYield
With triethylamine In toluene at 70℃; for 3h;100%
With triethylamine In toluene
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(E)-3-(thien-2-yl)prop-2-en-1-ol
89639-64-5, 3216-44-2

(E)-3-(thien-2-yl)prop-2-en-1-ol

(E)-3-thiophen-2-ylprop-2-en-1-yl 3-oxobutanoate

(E)-3-thiophen-2-ylprop-2-en-1-yl 3-oxobutanoate

Conditions
ConditionsYield
With triethylamine In toluene at 70℃; for 1.5h;100%
With dmap In tetrahydrofuran at 0℃; for 2h; Inert atmosphere;80%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(E)-3-(4-pyridyl)allyl acetoacetate

(E)-3-(4-pyridyl)allyl acetoacetate

Conditions
ConditionsYield
With triethylamine In toluene at 70℃; for 2h;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

C31H39NOSi
1191252-04-6

C31H39NOSi

C35H43NO3Si
1191252-05-7

C35H43NO3Si

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 2.5h; Inert atmosphere;100%
4-methyleneoxetan-2-one
674-82-8

4-methyleneoxetan-2-one

(R)-1-phenylethanol
1517-69-7

(R)-1-phenylethanol

(R)-1-phenylethyl acetoacetate
123261-65-4

(R)-1-phenylethyl acetoacetate

Conditions
ConditionsYield
With dmap In tetrahydrofuran at 20℃;100%

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