Product Name

  • Name

    Ethyl 2,3-dicyanopropionate

  • EINECS
  • CAS No. 40497-11-8
  • Article Data21
  • CAS DataBase
  • Density 1.129 g/cm3
  • Solubility
  • Melting Point
  • Formula C7H8N2O2
  • Boiling Point 338.17 °C at 760 mmHg
  • Molecular Weight 152.153
  • Flash Point 147.474 °C
  • Transport Information
  • Appearance Brown oil
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 40497-11-8 (Ethyl 2,3-dicyanopropionate)
  • Hazard Symbols
  • Synonyms Propionicacid, 2,3-dicyano-, ethyl ester (6CI);2,3-Dicyanopropanoic acid ethyl ester;2,3-Dicyanopropionic acid ethyl ester;Ethyl 2,3-dicyanopropanoate;
  • PSA 73.88000
  • LogP 0.60296

Synthetic route

sodium cyanide
773837-37-9

sodium cyanide

formaldehyd
50-00-0

formaldehyd

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
Stage #1: sodium cyanide; formaldehyd In N,N-dimethyl-formamide for 2h; Reflux;
Stage #2: ethyl 2-cyanoacetate In N,N-dimethyl-formamide at 28 - 30℃; for 4h; Temperature;
98.5%
With 2-amino-3-hydroxypyridine; 2-Amino-2-methylpropane-1,3-diol; diethyl malonate In dimethyl sulfoxide at 20℃; for 20h; Temperature; Reagent/catalyst;97.2%
Stage #1: sodium cyanide; formaldehyd In ethanol at 5 - 10℃; for 4h;
Stage #2: With hydrogenchloride In ethanol at 5 - 10℃;
Stage #3: ethyl 2-cyanoacetate With ethanol; sodium at 5 - 30℃; for 10h; Product distribution / selectivity;
75.2%
In ethanol; dichloromethane for 0.666667h; Reflux;63%
With tetrabutylammomium bromide In dichloromethane; water at 10 - 90℃; Reagent/catalyst; Solvent;81.21 g
sodium cyanide
773837-37-9

sodium cyanide

ethyl 2-cyanoacrylate
7085-85-0

ethyl 2-cyanoacrylate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
Stage #1: sodium cyanide In isopropyl alcohol at 30℃; for 4h;
Stage #2: ethyl-2-cyanoacrilate With methanesulfonic acid In isopropyl alcohol at 20 - 25℃; for 6h; Solvent; Reagent/catalyst; Temperature;
86%
Stage #1: sodium cyanide; ethyl-2-cyanoacrilate With methanesulfonic acid In isopropyl alcohol at 20 - 25℃; for 6h;
Stage #2: With hydrogenchloride In isopropyl alcohol at 10℃; Product distribution / selectivity;
trimethylsilyl cyanide
7677-24-9

trimethylsilyl cyanide

ethyl (E)-3-[(4-methylphenyl)sulfonyl]-2-propenoate
117659-25-3

ethyl (E)-3-[(4-methylphenyl)sulfonyl]-2-propenoate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran; acetonitrile at 20℃; for 2h; Michael Addition; Inert atmosphere;83%
formaldehyd
50-00-0

formaldehyd

potassium cyanide
151-50-8

potassium cyanide

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
With water In dimethyl sulfoxide at 20℃; for 15h;80%
In ethanol
glycolonitrile
107-16-4

glycolonitrile

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
Stage #1: ethyl 2-cyanoacetate With sodium ethanolate In ethanol for 0.5h;
Stage #2: glycolonitrile In ethanol at 5 - 30℃; for 8h;
Stage #3: In ethanol; water at 5 - 10℃; pH=4.45;
79.6%
Stage #1: ethyl 2-cyanoacetate With sodium ethanolate; sodium In ethanol for 0.5h;
Stage #2: glycolonitrile In ethanol at 5 - 30℃; for 8h;
79.6%
With potassium carbonate In N,N-dimethyl-formamide at 15 - 25℃; Product distribution / selectivity;77%
With sodium ethanolate In ethanol for 1h; Heating;
Stage #1: ethyl 2-cyanoacetate With ethanol; sodium for 0.5h;
Stage #2: glycolonitrile In ethanol at 5 - 30℃; for 8h;
ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
With paraformaldehyde In ethanol; water77%
ethanol
64-17-5

ethanol

sodium cyanoacetic acid ethyl ester
18852-51-2

sodium cyanoacetic acid ethyl ester

glycolonitrile
107-16-4

glycolonitrile

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
in kaltem Alkohol;
sodium cyanoacetic acid ethyl ester
18852-51-2

sodium cyanoacetic acid ethyl ester

glycolonitrile
107-16-4

glycolonitrile

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
With ethanol
diethyl sulfate
64-67-5

diethyl sulfate

carbon dioxide
124-38-9

carbon dioxide

tetraethylammoniumcyanide
13435-20-6

tetraethylammoniumcyanide

acrylonitrile
107-13-1

acrylonitrile

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
(i), (ii) /BRN= 605310/, (iii) /BRN= 1209714/; Multistep reaction;
potassium cyanide
151-50-8

potassium cyanide

Ethyl 2-bromopropionate
535-11-5, 41978-69-2

Ethyl 2-bromopropionate

A

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

B

α-cyano-propionic acid ester

α-cyano-propionic acid ester

Conditions
ConditionsYield
With ethanol
ethanedinitrile
460-19-5

ethanedinitrile

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
Stage #1: ethanedinitrile; ethyl 2-cyanoacetate With potassium carbonate In DMF (N,N-dimethyl-formamide); water at 30℃; for 1.5h;
Stage #2: at 20℃;
ethyl acrylate
140-88-5

ethyl acrylate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: iodine / dichloromethane / 48 h / 20 °C / Inert atmosphere
1.2: 3 h / 0 °C / Inert atmosphere
2.1: tetrabutyl ammonium fluoride / acetonitrile; tetrahydrofuran / 2 h / 20 °C / Inert atmosphere
View Scheme
diethyl malonate
105-53-3

diethyl malonate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: methanol / 3 h / 10 °C
1.2: 1 h / 0 °C
1.3: 1 h / 0 - 10 °C
2.1: ammonia / toluene / 2 h / 80 °C / 750.08 Torr / Inert atmosphere; Autoclave
3.1: 1,4-diaza-bicyclo[2.2.2]octane; phosgene / 5 h / 100 °C
View Scheme
ethyl 2-amido-3-cyanopropionate

ethyl 2-amido-3-cyanopropionate

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

Conditions
ConditionsYield
With 1,4-diaza-bicyclo[2.2.2]octane; phosgene at 100℃; for 5h; Concentration;134.5 g
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

2,6-dichloro-4-(trifluoromethyl)aniline
24279-39-8

2,6-dichloro-4-(trifluoromethyl)aniline

5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole
120068-79-3

5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole

Conditions
ConditionsYield
Stage #1: 2,6-dichloro-4-(trifluoromethyl)aniline With nitrosylsulfuric acid; acetic acid at 5 - 50℃; for 11h; Large scale;
Stage #2: ethyl 2,3-dicyanopropanoate In water at 10 - 30℃; for 20h; Large scale;
95%
Stage #1: 2,6-dichloro-4-(trifluoromethyl)aniline With nitrosylsulfuric acid; sulfuric acid In hexane at 10 - 30℃;
Stage #2: ethyl 2,3-dicyanopropanoate In hexane at 0 - 30℃; for 6h; Solvent;
95.2%
Stage #1: 2,6-dichloro-4-(trifluoromethyl)aniline With hydrogenchloride; sulfuric acid In water; toluene at 30 - 40℃; for 1.5h; Green chemistry;
Stage #2: With sodium nitrite In water; toluene at 15 - 20℃; for 1h; Green chemistry;
Stage #3: ethyl 2,3-dicyanopropanoate In water; toluene at 10 - 25℃; for 12h; Temperature; Green chemistry;
90%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

4-chloro-aniline
106-47-8

4-chloro-aniline

5-amino-1-(4-chlorophenyl)-1H-pyrazole-3-carbonitrile

5-amino-1-(4-chlorophenyl)-1H-pyrazole-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 4-chloro-aniline With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonium hydroxide In ethanol; water at 20℃; for 4h; pH=9 - 10;
93.6%
Stage #1: 4-chloro-aniline With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonia In dichloromethane; water at 20℃;
Stage #1: 4-chloro-aniline With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonium hydroxide In dichloromethane at 20℃;
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

2,6-dichloro-4-trifluoromethylaniline-13C

2,6-dichloro-4-trifluoromethylaniline-13C

5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethyl)pyrazole-13C6

5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethyl)pyrazole-13C6

Conditions
ConditionsYield
Stage #1: 2,6-dichloro-4-trifluoromethylaniline-13C With sulfuric acid; acetic acid; sodium nitrite at 55℃; for 0.75h; Cooling;
Stage #2: ethyl 2,3-dicyanopropanoate With acetic acid at 10℃; for 0.25h;
91.4%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

2,3-dicyanopropionamide
98024-59-0

2,3-dicyanopropionamide

Conditions
ConditionsYield
With ammonium hydroxide at 0℃; for 4h;85%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

4-phenoxyphenylboronic acid
51067-38-0

4-phenoxyphenylboronic acid

ethyl 2,5-bis(4-phenoxyphenyl)-1H-pyrrole-3-carboxylate

ethyl 2,5-bis(4-phenoxyphenyl)-1H-pyrrole-3-carboxylate

Conditions
ConditionsYield
With [2,2]bipyridinyl; palladium(II) trifluoroacetate; 2,2,2-trifluoroacetic acid ammonia; trifluoroacetic acid In tetrahydrofuran; water at 80℃; for 48h; Schlenk technique;83%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

2,4-Difluor-benzoldiazonium-chlorid
90802-25-8

2,4-Difluor-benzoldiazonium-chlorid

5-amino-1-(2,4-difluorophenyl)-3-cyano-1H-pyrazole

5-amino-1-(2,4-difluorophenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
for 2h;81%
Stage #1: ethyl 2,3-dicyanopropanoate; 2,4-Difluor-benzoldiazonium-chlorid for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
58.8%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

4-bromo-aniline
106-40-1

4-bromo-aniline

5-amino-1-(4-bromophenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-bromophenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: 4-bromo-aniline With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate In ethanol; water at 20℃; for 4h; pH=9 - 10;
80.3%
Stage #1: 4-bromo-aniline With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonia In dichloromethane; water at 20℃;
Stage #1: 4-bromo-aniline With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonium hydroxide In dichloromethane at 20℃;
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

p-chlorobenzenediazonium chloride
2028-74-2

p-chlorobenzenediazonium chloride

5-amino-1-(4-chlorophenyl)-1H-pyrazole-3-carbonitrile

5-amino-1-(4-chlorophenyl)-1H-pyrazole-3-carbonitrile

Conditions
ConditionsYield
for 2h;79.6%
Stage #1: ethyl 2,3-dicyanopropanoate; p-chlorobenzenediazonium chloride for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
72.6%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

benzene diazonium chloride
100-34-5

benzene diazonium chloride

5-amino-1-phenyl-1H-pyrazole-3-carbonitrile

5-amino-1-phenyl-1H-pyrazole-3-carbonitrile

Conditions
ConditionsYield
for 2h;78.8%
Stage #1: ethyl 2,3-dicyanopropanoate; benzene diazonium chloride for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
66.8%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

p-toluidine
106-49-0

p-toluidine

5-amino-1-(4-methylphenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-methylphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: p-toluidine With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonium hydroxide In ethanol; water at 20℃; for 4h; pH=9 - 10;
78.2%
Stage #1: p-toluidine With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonia In ethanol; water at 20℃; for 4h; pH=9 - 10;
60.5%
Stage #1: p-toluidine With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonia In dichloromethane; water at 20℃;
Stage #1: p-toluidine With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonium hydroxide In dichloromethane at 20℃;
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

2-fluorobenzenediazonium chloride
53559-92-5

2-fluorobenzenediazonium chloride

5-amino-1-(2-fluorophenyl)-3-cyano-1H-pyrazole

5-amino-1-(2-fluorophenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
for 2h;78%
Stage #1: ethyl 2,3-dicyanopropanoate; 2-fluorobenzenediazonium chloride for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
67.3%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

4-(trifluoromethoxy)aniline
461-82-5

4-(trifluoromethoxy)aniline

5-amino-1-(4-trifluoromethoxyphenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-trifluoromethoxyphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: 4-(trifluoromethoxy)aniline With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonia In ethanol; water at 20℃; for 4h; pH=9 - 10;
77.4%
Stage #1: 4-(trifluoromethoxy)aniline With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonium hydroxide In dichloromethane at 20℃;
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

ethyl 2-(aminomethyl)-4-aminobutyrate dihydrochloride

ethyl 2-(aminomethyl)-4-aminobutyrate dihydrochloride

Conditions
ConditionsYield
With hydrogenchloride; hydrogen; platinum(IV) oxide In methanol under 2585.7 Torr; for 2h;77%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

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

1-amino-3-methylbenzene

5-amino-1-(3-methylphenyl)-3-cyano-1H-pyrazole

5-amino-1-(3-methylphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: 1-amino-3-methylbenzene With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonia In ethanol; water at 20℃; for 4h; pH=9 - 10;
76.2%
Stage #1: 1-amino-3-methylbenzene With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonium hydroxide In dichloromethane at 20℃;
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

p-methylbenzenediazonium chloride
2028-84-4

p-methylbenzenediazonium chloride

5-amino-1-(4-methylphenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-methylphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
for 2h;75.8%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

3,4-dichlorobenzenediazonium chloride
50379-99-2

3,4-dichlorobenzenediazonium chloride

5-amino-1-(3,4-dichlorophenyl)-3-cyano-1H-pyrazole

5-amino-1-(3,4-dichlorophenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
for 2h;75.3%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

(4-bromophenyl)diazonium chloride
2028-85-5

(4-bromophenyl)diazonium chloride

5-amino-1-(4-bromophenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-bromophenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: ethyl 2,3-dicyanopropanoate; (4-bromophenyl)diazonium chloride for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
75.2%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

C7H2Cl2F3N2(1+)*Cl(1-)

C7H2Cl2F3N2(1+)*Cl(1-)

5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole
120068-79-3

5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole

Conditions
ConditionsYield
for 2h;74.7%
Stage #1: ethyl 2,3-dicyanopropanoate; C7H2Cl2F3N2(1+)*Cl(1-) for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
48.8%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

2,6-Difluoro-benzenediazonium; chloride

2,6-Difluoro-benzenediazonium; chloride

5-amino-1-(2,3,4-trifluorophenyl)-3-cyano-1H-pyrazole

5-amino-1-(2,3,4-trifluorophenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: ethyl 2,3-dicyanopropanoate; 2,6-Difluoro-benzenediazonium; chloride for 2h;
Stage #2: With ammonium hydroxide at 20℃; for 2h; pH=9 - 10;
73.8%
2,6-dibromo-4-(trifluoromethoxy)aniline
88149-49-9

2,6-dibromo-4-(trifluoromethoxy)aniline

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

5-amino-1-[2,6-dibromo-4-(trifluoromethoxy)phenyl]-1H-pyrazole-3-carbonitrile

5-amino-1-[2,6-dibromo-4-(trifluoromethoxy)phenyl]-1H-pyrazole-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2,6-dibromo-4-(trifluoromethoxy)aniline With sulfuric acid; acetic acid; sodium nitrite In water at 0 - 55℃; for 1h;
Stage #2: ethyl 2,3-dicyanopropanoate With acetic acid In water at 5 - 20℃; for 2h;
73%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

ethyl 2,3-dicarbamoylpropionate

ethyl 2,3-dicarbamoylpropionate

Conditions
ConditionsYield
Stage #1: ethyl 2,3-dicyanopropanoate With acetamide; acetic acid at 50℃; under 760.051 Torr; for 0.5h;
Stage #2: With tetrakis(acetonitrile)palladium(II) tetrafluoroborate at 50℃; under 2 Torr; for 2h;
72%
4-trifluoromethylphenylamine
455-14-1

4-trifluoromethylphenylamine

ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

5-amino-1-(4-trifluoromethylphenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-trifluoromethylphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: 4-trifluoromethylphenylamine With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonia In ethanol; water at 20℃; for 4h; pH=9 - 10;
70.4%
Stage #1: 4-trifluoromethylphenylamine With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonium hydroxide In ethanol; water at 20℃; for 4h; pH=9 - 10;
58.9%
Stage #1: 4-trifluoromethylphenylamine With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonia In dichloromethane; water at 20℃;
Stage #1: 4-trifluoromethylphenylamine With hydrogenchloride; sodium nitrite at -5℃;
Stage #2: ethyl 2,3-dicyanopropanoate at 20℃;
Stage #3: With ammonium hydroxide In dichloromethane at 20℃;
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

3-trifluoromethylaniline
98-16-8

3-trifluoromethylaniline

5-amino-1-(3-trifluoromethylphenyl)-3-cyano-1H-pyrazole

5-amino-1-(3-trifluoromethylphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
Stage #1: 3-trifluoromethylaniline With hydrogenchloride; sodium nitrite In ethanol; water for 0.5h; Cooling with ice;
Stage #2: ethyl 2,3-dicyanopropanoate With ammonia In ethanol; water at 20℃; for 4h; pH=9 - 10;
70.4%
ethyl 2,3-dicyanopropanoate
40497-11-8

ethyl 2,3-dicyanopropanoate

p-trifluorobenzene diazonium chloride
25102-84-5

p-trifluorobenzene diazonium chloride

5-amino-1-(4-trifluoromethylphenyl)-3-cyano-1H-pyrazole

5-amino-1-(4-trifluoromethylphenyl)-3-cyano-1H-pyrazole

Conditions
ConditionsYield
for 2h;70.4%

Ethyl 2,3-dicyanopropionate Specification

The CAS register number of Ethyl 2,3-dicyanopropionate is 40497-11-8. It also can be called as Propanoic acid,2,3-dicyano-, ethyl ester and the systematic name about this chemical is ethyl 2,3-dicyanopropanoate. The molecular formula about this chemical is C7H8N2O2 and the molecular weight is 152.15. It belongs to the following product categories which include All Aliphatics; Aliphatics and so on. This chemical can be used as an intermediate for insecticide.

Physical properties about Ethyl 2,3-dicyanopropionate are: (1)ACD/LogP: -0.11; (2)#H bond acceptors: 4; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 73.88Å2; (5)Index of Refraction: 1.448; (6)Molar Refractivity: 36.04 cm3; (7)Molar Volume: 134.708 cm3; (8)Polarizability: 14.287x10-24cm3; (9)Surface Tension: 45.236 dyne/cm; (10)Flash Point: 147.474 °C; (11)Enthalpy of Vaporization: 58.15 kJ/mol; (12)Boiling Point: 338.17 °C at 760 mmHg.

You can still convert the following datas into molecular structure:
(1)SMILES: N#CCC(C#N)C(=O)OCC
(2)InChI: InChI=1/C7H8N2O2/c1-2-11-7(10)6(5-9)3-4-8/h6H,2-3H2,1H3
(3)InChIKey: NPZOLWMDTPEVEI-UHFFFAOYAF
(4)Std. InChI: InChI=1S/C7H8N2O2/c1-2-11-7(10)6(5-9)3-4-8/h6H,2-3H2,1H3
(5)Std. InChIKey: NPZOLWMDTPEVEI-UHFFFAOYSA-N

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