ChemicalBook--->CAS DataBase List--->7126-44-5

7126-44-5

7126-44-5 Structure

7126-44-5 Structure
IdentificationBack Directory
[Name]

1H-Pyrrole-2-carboxylicacid,3-cyano-,ethylester(9CI)
[CAS]

7126-44-5
[Synonyms]

Ethyl 3-Cyanopyrrole-2-carboxylate
3-Cyan-2-pyrrolcarbonsaeure-ethylester
ethyl 3-cyano-1H-pyrrole-2-carboxylate
3-Cyano-1H-pyrrole-2-carboxylic acid ethyl ester
1H-Pyrrole-2-carboxylic acid, 3-cyano-, ethyl ester
1H-Pyrrole-2-carboxylicacid,3-cyano-,ethylester(9CI)
[Molecular Formula]

C8H8N2O2
[MDL Number]

MFCD12756171
[MOL File]

7126-44-5.mol
[Molecular Weight]

164.16
Chemical PropertiesBack Directory
[Melting point ]

92-93 °C
[Boiling point ]

130-140 °C(Press: 0.01 Torr)
[density ]

1.24±0.1 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
[pka]

12.85±0.50(Predicted)
[Appearance]

Light yellow to light brown Solid
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H317-H319
[Precautionary statements ]

P280-P305+P351+P338
Spectrum DetailBack Directory
[Spectrum Detail]

1H-Pyrrole-2-carboxylicacid,3-cyano-,ethylester(9CI)(7126-44-5)1HNMR
Hazard InformationBack Directory
[Synthesis]

2,4,6-Octatrienedioic acid, 3,6-dicyano-2,7-dihydroxy-, diethyl ester, (E,Z,E)- (9CI)

147299-51-2

1H-Pyrrole-2-carboxylicacid,3-cyano-,ethylester(9CI)

7126-44-5

General procedure for the synthesis of ethyl 3-cyano-1H-pyrrole-2-carboxylate from the compound (CAS:147299-51-2): a solution of 0.5 M ammonia (NH3) in dioxane (22 ml) was added slowly and dropwise to a solution of ethyl acetate (EtOAc, 30 ml) of 1b (1.62 g) at 60 °C. The reaction mixture was heated to reflux for 18 hours. Upon completion of the reaction, the mixture was cooled to room temperature and the solvent was subsequently removed by rotary evaporation. The residue was purified by silica gel column chromatography to give the final light yellow solid product 88a (0.37 g).

[References]

[1] Patent: WO2016/7185, 2016, A1. Location in patent: Paragraph 00268; 00269
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