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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2362259Generated: November 1, 2026

Ammonium Hydroxide → 5-Amino-2-thiophenecarboxamide

https://huagongshe.com/reaction/2362259

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
ReactantMethyl 5-amino-2-thiophenecarboxylateHCID 7131725—
Product5-Amino-2-thiophenecarboxamideHCID 4508416247.4%

Reaction Conditions

Temperature60 °C

Reaction Steps

A 18 ml vial was loaded with 5-amino-thiophene-2-carboxylic acid methylester (250 mg, 1.59 mmole) and 5 ml of 30% NH4OH. The vial was sealed and the mixture was heated at 60° C. for 24 hours. The mixture was cooled down and concentrated to give 200 mg crude product, 47.4% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691816B2
Source datasetuspto-grants-2014_04
ORD IDord-b42d4bcdf5fd4421a3d8a0ce646d6f1f
Source noteuspto-grants-2014_04