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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1866235Generated: November 3, 2026

Ethyl 6-cyano-1H-indole-2-carboxylate → 6-Cyano-1H-indole-2-carboxamide

https://huagongshe.com/reaction/1866235

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 6-cyano-1H-indole-2-carboxylateHCID 4715002—
ReactantAmmonia methanolHCID 21705897—
Product6-Cyano-1H-indole-2-carboxamideHCID 6709575388.6%

Reaction Steps

Treat 6-cyano-1H-indole-2-carboxylic acid ethyl ester 5a (m=0, 1.0 g, 4.67 mmol) with 7 N NH3/MeOH as described in General Procedure IV to afford the title compound as an ivory colored solid (766 mg, 88.6%), mp 241-242° C.; 1H NMR (DMSO-d6) δ 11.5 (brs, 1H), 8.16 (brs, 1H), 7.83 (s, 1H), 7.80 (d, 1H, J=8.0 Hz), 7.58 (brs, 1H), 7.35 (d, 1H, J=8.0 Hz), 7.23 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07629376B2
Source datasetuspto-grants-2009_12
ORD IDord-b2c8717aea4e4bcfa124d11e94451437
Source noteuspto-grants-2009_12