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Diethyl oxalate 95-92-1 /manufacturer/low price/high quality/in stock
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Diethyl oxalate
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95-92-1 Usage

Air & Water Reactions

Insoluble in water.

Hazard

Toxic by ingestion, strong irritant to skin and mucous membranes.

General Description

A colorless liquid. Flash point 168°F. Slightly denser than water and insoluble in water. Hence sinks in water. May irritate skin and mucous membranes; may be mildly toxic by ingestion; may emit irritating fumes in a fire. Vapors are much heavier than air. Used as a solvent for plastics and in the manufacture of perfumes and pharmaceuticals.

Production Methods

Diethyl oxalate is produced via esterification of ethanol and oxalic acid. It is a preferred solvent for cellulose acetate and nitrate.

Uses

manufacture of phenobarbital, ethylbenzyl malonate, triethylamine, and similar chemicals, plastics, dyestuff intermediates. Solvent for cellulose esters, perfumes.

Safety Profile

Poison by ingestion. Flammable liquid when exposed to heat or flame; can react with oxidzing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also OXALATES and ESTERS.

Fire Hazard

Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.

Reactivity Profile

Diethyl oxalate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides

Health Hazard

TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Chemical Properties

colourless liquid
InChI:InChI=1/C6H10O4/c1-3-9-5(7)6(8)10-4-2/h3-4H2,1-2H3

95-92-1 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (A14498)  Diethyl oxalate, 99%    95-92-1 500g 207.0CNY Detail
Alfa Aesar (A14498)  Diethyl oxalate, 99%    95-92-1 2500g 428.0CNY Detail
Alfa Aesar (A14498)  Diethyl oxalate, 99%    95-92-1 10000g 1452.0CNY Detail

95-92-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name Diethyl oxalate

1.2 Other means of identification

Product number -
Other names Ethanedioic acid, diethyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
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:95-92-1 SDS

95-92-1Synthetic route

ethanol
64-17-5

ethanol

oxalic acid
144-62-7

oxalic acid

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
With enriched hydroxylated graphene oxide In benzene at 120 - 140℃;99.3%
With sulfuric acid for 1h; Reflux;93%
With Fe(SO4)3 * xH2O In toluene for 1.2h; Heating;90%
ethanol
64-17-5

ethanol

N,N'-diacetyl-oxalamide
40227-15-4

N,N'-diacetyl-oxalamide

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
With sodium methylate95%
diacetyloxamide

diacetyloxamide

ethanol
64-17-5

ethanol

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
With sodium methylate95%
diethyl malonate
105-53-3

diethyl malonate

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
With aluminum (III) chloride; Oxone In water at 20℃; for 0.166667h;95%
ethanol
64-17-5

ethanol

1,1'-oxalyldiimidazole
18637-83-7

1,1'-oxalyldiimidazole

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
87%
oxalyl dichloride
79-37-8

oxalyl dichloride

ethanol
64-17-5

ethanol

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethanol
64-17-5

ethanol

ethanedinitrile
460-19-5

ethanedinitrile

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
With hydrogenchloride
ethanol
64-17-5

ethanol

dichloro-(2-chloro-ethoxy)-acetyl chloride
98020-30-5

dichloro-(2-chloro-ethoxy)-acetyl chloride

A

chloroethane
75-00-3

chloroethane

B

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

C

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
zuletzt in der Siedehitze; reagiert analog mit Methanol und Isopropylalkohol;
ethanol
64-17-5

ethanol

bis(trichloromethyl) oxalate
98020-90-7

bis(trichloromethyl) oxalate

A

chloroformic acid ethyl ester
541-41-3

chloroformic acid ethyl ester

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethanol
64-17-5

ethanol

phenol; compound with oxalic acid
66775-86-8

phenol; compound with oxalic acid

A

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

B

phenol
108-95-2

phenol

oxalic acid monoethyl ester
617-37-8

oxalic acid monoethyl ester

A

oxalic acid
144-62-7

oxalic acid

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
im Einschlussrohr;
beim Aufbewahren;
oxalic acid monoethyl ester
617-37-8

oxalic acid monoethyl ester

A

methylammonium carbonate
15719-64-9, 15719-76-3, 97762-63-5

methylammonium carbonate

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

C

formic acid ethyl ester
109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
bei der Destillation unter gewoehnlichem Druck;
(3-carbamoyl-phenyl)-oxalamic acid ethyl ester

(3-carbamoyl-phenyl)-oxalamic acid ethyl ester

A

N,N'-bis-(3-carbamoyl-phenyl)-oxalamide

N,N'-bis-(3-carbamoyl-phenyl)-oxalamide

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
beim Erhitzen ueber den Schmelzpunkt;
3-ethoxyoxalylamino-benzoic acid
90681-11-1

3-ethoxyoxalylamino-benzoic acid

A

3,3'-oxalyldiamino-di-benzoic acid
155049-63-1

3,3'-oxalyldiamino-di-benzoic acid

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
at 225℃;
5-acetoxy-6-ethoxyoxalyloxy-2-methyl-benzofuran-3-carboxylic acid ethyl ester
110029-67-9

5-acetoxy-6-ethoxyoxalyloxy-2-methyl-benzofuran-3-carboxylic acid ethyl ester

A

ethyl 5,6-dihydroxy-2-methyl-1-benzofuran-3-carboxylate
83634-11-1

ethyl 5,6-dihydroxy-2-methyl-1-benzofuran-3-carboxylate

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
With hydrogenchloride; ethanol
potassium monoethyl oxalate
1906-57-6

potassium monoethyl oxalate

A

ethanol
64-17-5

ethanol

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
beim Gluehen;
ethanol
64-17-5

ethanol

oxalic acid
144-62-7

oxalic acid

A

oxalic acid monoethyl ester
617-37-8

oxalic acid monoethyl ester

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
at 40 - 50℃; bei mehrwoechigem Stehen der gesaettigen Loesung;
With 20 molpercent molybdenum oxide nanoparticle supported on mesoporous silica at 75℃; for 8h; Time;
ethanol
64-17-5

ethanol

oxalic acid
144-62-7

oxalic acid

A

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

B

formic acid ethyl ester
109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
durch Erhitzen; Nebenprod.2:Kohlensaeurediaethylester;
oxalic acid
144-62-7

oxalic acid

chloroacetaldehyde diethyl acetal
621-62-5

chloroacetaldehyde diethyl acetal

A

2-chloroethanal
107-20-0

2-chloroethanal

B

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Conditions
ConditionsYield
at 100 - 150℃;
monoorthooxalic acid-1,1,2-triethyl ester; sodium salt

monoorthooxalic acid-1,1,2-triethyl ester; sodium salt

acetic acid
64-19-7

acetic acid

A

ethanol
64-17-5

ethanol

B

sodium oxalate
62-76-0

sodium oxalate

C

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

para-chloroacetophenone
99-91-2

para-chloroacetophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 4-chlorobenzoylpyruvate
5814-38-0

ethyl 4-chlorobenzoylpyruvate

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran for 1h; Claisen Condensation; Reflux;100%
With sodium In ethanol for 16h; Cooling with ice;97%
With sodium ethanolate In toluene at 50 - 60℃; for 4h;90%
3-methyl-butan-2-one
563-80-4

3-methyl-butan-2-one

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 2,4-dioxo-5-methylhexanoate
64195-85-3

ethyl 2,4-dioxo-5-methylhexanoate

Conditions
ConditionsYield
With sodium In ethanol at 0 - 80℃; for 2h;100%
Stage #1: 3-methyl-butan-2-one; oxalic acid diethyl ester With sodium In ethanol at 0 - 80℃; for 1.75h;
Stage #2: With sulfuric acid In ethanol; water at 15 - 25℃; pH=2;
90%
With sodium In ethanol at 20 - 80℃; for 76.25h; Reflux; Inert atmosphere;89.7%
biphenyl-4-acetaldehyde
92-91-1

biphenyl-4-acetaldehyde

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 3-(4-phenylbenzoyl)-2-ketopropionate
41350-17-8

ethyl 3-(4-phenylbenzoyl)-2-ketopropionate

Conditions
ConditionsYield
Stage #1: biphenyl-4-acetaldehyde With lithium hexamethyldisilazane In tetrahydrofuran; dichloromethane at -78℃; for 0.75h;
Stage #2: oxalic acid diethyl ester In tetrahydrofuran; dichloromethane at 0 - 20℃; for 16h;
Stage #3: With water; ammonium chloride In tetrahydrofuran; dichloromethane
100%
With sodium ethanolate In benzene for 4.5h; Ambient temperature;70%
With sodium
Stage #1: oxalic acid diethyl ester With sodium ethanolate In toluene for 0.166667h; Cooling with ice;
Stage #2: biphenyl-4-acetaldehyde In toluene for 4h; Cooling with ice;
With sodium In diethyl ether at 20 - 40℃;
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

2-amino-2-hydroxymethyl-1,3-propanediol
77-86-1

2-amino-2-hydroxymethyl-1,3-propanediol

N,N'-bis[tris(hydroxymethyl)methyl]ethanediamide
5714-31-8

N,N'-bis[tris(hydroxymethyl)methyl]ethanediamide

Conditions
ConditionsYield
at 140℃; for 1h;100%
In ethylene glycol at 100 - 105℃; for 6h; Conversion of starting material;92%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

1-(4-methoxyphenyl)ethanone
100-06-1

1-(4-methoxyphenyl)ethanone

ethyl 3-(4-methoxybenzoyl)pyruvate
35322-20-4

ethyl 3-(4-methoxybenzoyl)pyruvate

Conditions
ConditionsYield
Stage #1: 1-(4-methoxyphenyl)ethanone With sodium In ethanol at 20℃; for 0.5h;
Stage #2: oxalic acid diethyl ester at 20 - 80℃; for 3h;
100%
With sodium hydride In N,N-dimethyl-formamide at 0 - 100℃;100%
Stage #1: oxalic acid diethyl ester With sodium methylate In diethyl ether at 20℃; Inert atmosphere;
Stage #2: 1-(4-methoxyphenyl)ethanone In diethyl ether at 20℃; for 12h;
92%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

naphthalene-1,8-diamine
479-27-6

naphthalene-1,8-diamine

ethyl 1H-perimidine-2-carboxylate
109735-80-0

ethyl 1H-perimidine-2-carboxylate

Conditions
ConditionsYield
at 135 - 140℃; for 1.5h;100%
acetophenone
98-86-2

acetophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 2,4-dioxo-4-phenylbutyrate
6296-54-4

ethyl 2,4-dioxo-4-phenylbutyrate

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 0 - 20℃; for 20h; Condensation;100%
Stage #1: acetophenone; oxalic acid diethyl ester With sodium hydride In N,N-dimethyl-formamide at 20 - 50℃; for 0.833333h;
Stage #2: With hydrogenchloride In water
100%
With sodium hydride In tetrahydrofuran for 1h; Claisen Condensation; Reflux;100%
2-Acetylthiophene
88-15-3

2-Acetylthiophene

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 2,4-dioxo-4-(thiophen-2-yl)butanoate
36983-36-5

ethyl 2,4-dioxo-4-(thiophen-2-yl)butanoate

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 0 - 20℃; for 20h; Condensation;100%
With sodium methylate for 0.333333h;82%
With sodium methylate for 0.333333h; Heating;82%
2,3-dihydro-4H-[1]benzothiopyran-4-one
3528-17-4

2,3-dihydro-4H-[1]benzothiopyran-4-one

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

3-ethoxalyl-2,3-dihydro-1-benzothiopyran-4-one
56876-58-5

3-ethoxalyl-2,3-dihydro-1-benzothiopyran-4-one

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 40℃; for 2h;100%
With sodium In ethanol Claisen Condensation;
para-chloroacetophenone
99-91-2

para-chloroacetophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

4-(4-chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid ethyl ester lithium salt

4-(4-chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid ethyl ester lithium salt

Conditions
ConditionsYield
With lithium hexamethyldisilazane In diethyl ether at -78 - 20℃;100%
Stage #1: para-chloroacetophenone With lithium hexamethyldisilazane In tetrahydrofuran; tert-butyl methyl ether at -75 - -70℃; for 1h;
Stage #2: oxalic acid diethyl ester at -70 - 20℃; for 19h;
94%
Stage #1: para-chloroacetophenone With lithium hexamethyldisilazane In tetrahydrofuran; diethyl ether at -78℃; for 0.666667h;
Stage #2: oxalic acid diethyl ester In tetrahydrofuran; diethyl ether at -78 - 20℃;
92%
With lithium hexamethyldisilazane 1.) ether, -78 deg C, 30 min, 2.) room temperature, 2 h; Yield given. Multistep reaction;
1-(benzyloxy)-3-methyl-2-nitrobenzene
61535-21-5

1-(benzyloxy)-3-methyl-2-nitrobenzene

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 3-(3-benzyloxy-2-nitrophenyl)-pyruvate, potassium salt
96564-49-7

ethyl 3-(3-benzyloxy-2-nitrophenyl)-pyruvate, potassium salt

Conditions
ConditionsYield
With potassium ethoxide In diethyl ether for 20h; Heating;100%
With potassium tert-butylate In tetrahydrofuran; tert-butyl methyl ether at 20℃; Heating / reflux;74%
With potassium tert-butylate In tetrahydrofuran; diethyl ether at 20℃; Heating / reflux;
n-hexylmagnesium bromide
3761-92-0

n-hexylmagnesium bromide

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 2-oxooctanoate
67873-26-1

ethyl 2-oxooctanoate

Conditions
ConditionsYield
Stage #1: n-hexylmagnesium bromide; oxalic acid diethyl ester In tetrahydrofuran; diethyl ether at -58 - 0℃; for 0.5h;
Stage #2: With sulfuric acid; water In tetrahydrofuran; diethyl ether
100%
In tetrahydrofuran; diethyl ether at -60℃;88%
In tetrahydrofuran at -10℃; for 1h;43%
In diethyl ether at -78℃; for 1.66667h; Inert atmosphere;
In tetrahydrofuran at -78 - 20℃; for 1h; Inert atmosphere;
isopropenylmagnesium bromide
13291-18-4

isopropenylmagnesium bromide

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 3-methyl-2-oxobut-3-enoate
50331-71-0

ethyl 3-methyl-2-oxobut-3-enoate

Conditions
ConditionsYield
In tetrahydrofuran; diethyl ether at -70℃; for 0.333333h;100%
In tetrahydrofuran; diethyl ether at -60℃;87%
In tetrahydrofuran; diethyl ether at -78℃; for 1.83333h; Inert atmosphere;80%
In tetrahydrofuran; diethyl ether at -80℃;3.75 g
In tetrahydrofuran; diethyl ether at -78℃;
2-amino-4,5-difluoroaniline
76179-40-3

2-amino-4,5-difluoroaniline

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

6,7-difluoro-1,4-dihydro-2,3-quinoxalinedione
91895-29-3

6,7-difluoro-1,4-dihydro-2,3-quinoxalinedione

Conditions
ConditionsYield
for 16h; Heating;100%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

(S)-1-Pyrrolidin-2-yl-methanol
23356-96-9

(S)-1-Pyrrolidin-2-yl-methanol

1,2-Bis-((S)-2-hydroxymethyl-pyrrolidin-1-yl)-ethane-1,2-dione
85351-62-8

1,2-Bis-((S)-2-hydroxymethyl-pyrrolidin-1-yl)-ethane-1,2-dione

Conditions
ConditionsYield
0 degC-room temp, 2 h, room temp;100%
4'-chloropropiophenone
6285-05-8

4'-chloropropiophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

4-(4-chlorophenyl)-3-methyl-2,4-dioxobutyric acid ethyl ester
169544-41-6

4-(4-chlorophenyl)-3-methyl-2,4-dioxobutyric acid ethyl ester

Conditions
ConditionsYield
With sodium In ethanol at 20℃; for 18h; Claisen Condensation;100%
With lithium tert-butoxide In tetrahydrofuran at 0 - 20℃; for 4h; Claisen Condensation; Inert atmosphere;82%
Stage #1: oxalic acid diethyl ester With sodium ethanolate In ethanol at 20℃; for 0.166667h; Inert atmosphere;
Stage #2: 4'-chloropropiophenone In ethanol at 20℃; for 24h;
76.9%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

[5-(4-amino-2,6-dimethyl-phenoxy)-2-hydroxy-phenyl]-(4-fluoro-phenyl)-methanone
156740-88-4

[5-(4-amino-2,6-dimethyl-phenoxy)-2-hydroxy-phenyl]-(4-fluoro-phenyl)-methanone

ethyl N-<4-<3-(4-fluorobenzoyl)-4-hydroxyphenoxy>-3,5-dimethylphenyl>oxamate
156740-56-6

ethyl N-<4-<3-(4-fluorobenzoyl)-4-hydroxyphenoxy>-3,5-dimethylphenyl>oxamate

Conditions
ConditionsYield
at 100℃; for 1h;100%
In n-heptane
1-amino-3-(dimethylamino)propane
109-55-7

1-amino-3-(dimethylamino)propane

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

N,N'-bis(3-dimethylaminopropyl)oxalamide
25148-90-7

N,N'-bis(3-dimethylaminopropyl)oxalamide

Conditions
ConditionsYield
In ethanol Inert atmosphere; Flow reactor;100%
In tetrahydrofuran at 65℃; for 24h;90%
para-bromoacetophenone
99-90-1

para-bromoacetophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 4-(4-bromophenyl)-2,4-dioxobutanoate
40155-54-2

ethyl 4-(4-bromophenyl)-2,4-dioxobutanoate

Conditions
ConditionsYield
Stage #1: para-bromoacetophenone With sodium In ethanol at 0 - 10℃; for 1h;
Stage #2: oxalic acid diethyl ester In ethanol for 1.5h;
100%
With sodium ethanolate In ethanol at 20℃; for 12h;85%
Stage #1: oxalic acid diethyl ester With sodium ethanolate In benzene at 0℃; Inert atmosphere;
Stage #2: para-bromoacetophenone In benzene at 0 - 20℃; for 14.5h; Inert atmosphere;
75%
(3-acetylphenyl)(phenyl)methanone
66067-44-5

(3-acetylphenyl)(phenyl)methanone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

(Z)-4-(3-Benzoyl-phenyl)-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

(Z)-4-(3-Benzoyl-phenyl)-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

Conditions
ConditionsYield
With sodium hydride In toluene at 60℃;100%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

3-(azidophenyl) methyl ketone
70334-60-0

3-(azidophenyl) methyl ketone

(Z)-4-(3-Azido-phenyl)-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

(Z)-4-(3-Azido-phenyl)-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

Conditions
ConditionsYield
With sodium hydride In toluene at 60℃;100%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

1-[3-(4-benzoyl-benzyloxy)-phenyl]-ethanone
682360-15-2

1-[3-(4-benzoyl-benzyloxy)-phenyl]-ethanone

(Z)-4-[3-(4-Benzoyl-benzyloxy)-phenyl]-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

(Z)-4-[3-(4-Benzoyl-benzyloxy)-phenyl]-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

Conditions
ConditionsYield
With sodium hydride In toluene at 60℃;100%
o-hydroxyacetophenone
118-93-4

o-hydroxyacetophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl 2-hydroxy-4-(2-hydroxyphenyl)-4-oxobut-2-enoate

ethyl 2-hydroxy-4-(2-hydroxyphenyl)-4-oxobut-2-enoate

Conditions
ConditionsYield
With sodium ethanolate In tetrahydrofuran at 25℃; for 0.00277778h; microwave irradiation;100%
3-Hydroxyacetophenone
121-71-1

3-Hydroxyacetophenone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

(Z)-ethyl 2-hydroxy-4-(3-hydroxyphenyl)-4-oxobut-2-enoate

(Z)-ethyl 2-hydroxy-4-(3-hydroxyphenyl)-4-oxobut-2-enoate

Conditions
ConditionsYield
With sodium ethanolate In tetrahydrofuran at 25℃; for 0.00277778h; microwave irradiation;100%
With potassium tert-butylate In tetrahydrofuran at 20℃; Claisen Condensation;88%
1-(2-chlorophenyl)ethanone
2142-68-9

1-(2-chlorophenyl)ethanone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

Lithium; (Z)-3-(2-chloro-phenyl)-1-ethoxycarbonyl-3-oxo-propen-1-olate

Lithium; (Z)-3-(2-chloro-phenyl)-1-ethoxycarbonyl-3-oxo-propen-1-olate

Conditions
ConditionsYield
With lithium hexamethyldisilazane In diethyl ether at -78 - 20℃;100%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

2-bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one
169192-93-2

2-bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one

ethyl γ-(7-bromo-1-oxo-2,3,4,5-tetrahydrobenzocyclohepten-2-yl)-α-oxoacetate
870679-54-2

ethyl γ-(7-bromo-1-oxo-2,3,4,5-tetrahydrobenzocyclohepten-2-yl)-α-oxoacetate

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 20℃; Inert atmosphere;100%
With sodium ethanolate In ethanol at 20℃; for 9h;90%
oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

acetone
67-64-1

acetone

2-hydroxy-4-oxopent-2-enoic acid ethyl ester
53120-38-0

2-hydroxy-4-oxopent-2-enoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: oxalic acid diethyl ester; acetone With sodium ethanolate In ethanol at 20℃; for 2h;
Stage #2: With sulfuric acid In water at 0 - 20℃;
100%
With potassium tert-butylate In tetrahydrofuran at 0 - 20℃; for 16h;47%
With sodium ethanolate In ethanol at 20℃; for 2h; aldol condensation;
3,6-diacetyl-4(1H)-quinolinone
883107-05-9

3,6-diacetyl-4(1H)-quinolinone

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

(Z)-4-[6-((Z)-3-Ethoxycarbonyl-3-hydroxy-acryloyl)-4-oxo-1,4-dihydro-quinolin-3-yl]-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

(Z)-4-[6-((Z)-3-Ethoxycarbonyl-3-hydroxy-acryloyl)-4-oxo-1,4-dihydro-quinolin-3-yl]-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester

Conditions
ConditionsYield
With sodium ethanolate In tetrahydrofuran at 20℃; for 2h; Claisen condensation;100%
3,4-diamino-2'-methoxy-biphenyl-2-carbonitrile

3,4-diamino-2'-methoxy-biphenyl-2-carbonitrile

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

6-(2-methoxy-phenyl)-2,3-dioxo-1,2,3,4-tetrahydro-quinoxaline-5-carbonitrile
951630-17-4

6-(2-methoxy-phenyl)-2,3-dioxo-1,2,3,4-tetrahydro-quinoxaline-5-carbonitrile

Conditions
ConditionsYield
for 5h; Heating / reflux;100%
3-acetyl-5-methoxy-1-(4-(trifluoromethyl)benzyl)-1H-indole
947589-65-3

3-acetyl-5-methoxy-1-(4-(trifluoromethyl)benzyl)-1H-indole

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

ethyl (Z)-4-[5-methoxy-1-(4-(trifluoromethyl)benzyl)-1H-indol-3-yl]-2-hydroxy-4-oxobut-2-enoate

ethyl (Z)-4-[5-methoxy-1-(4-(trifluoromethyl)benzyl)-1H-indol-3-yl]-2-hydroxy-4-oxobut-2-enoate

Conditions
ConditionsYield
With sodium methylate In tetrahydrofuran at 50℃; under 15514.9 Torr; for 0.0666667h; microwave irradiation;100%

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