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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1865131Generated: October 26, 2026

Ethyl cyanoacetate → Ethyl 4-cyano-3-[4-(3-cyano(2-thienyl))phenyl]pyrrole-2-carboxylate

https://huagongshe.com/reaction/1865131

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl cyanoacetateHCID 7764—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant2-(4-{2-Cyano-2-[(4-methylphenyl)sulfonyl]vinyl}phenyl)thiophene-3-carbonitrileHCID 69020631—
ProductEthyl 4-cyano-3-[4-(3-cyano(2-thienyl))phenyl]pyrrole-2-carboxylateHCID 69020346—

Reaction Steps

In a manner analogous to the procedure set forth in example A-239, the title compound is prepared from 2-(4-{2-cyano-2-[(4-methylphenyl)sulfonyl]vinyl}phenyl)thiophene-3-carbonitrile, prepared directly above, ethyl cyanoacetate and 1,8-diazabicyclo[5.4.0]undec-7-ene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07625932B2
Source datasetuspto-grants-2009_12
ORD IDord-ff6a01c2b0fb4eb38566a4203d96f2f8
Source noteuspto-grants-2009_12