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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236999Generated: November 1, 2026

Formamide → HCID 20277966, compound

https://huagongshe.com/reaction/236999

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
ReactantWaterHCID 962—
ReactantAmmonium HydroxideHCID 14923—
ReactantHCID 21314987HCID 21314987—
SolventChloroformHCID 6212—
ProductHCID 20277966HCID 20277966—

Reaction Steps

A mixture of 35 g of 2-bromo-2-(4-chlorophenyl)-1-(2-thienyl)ethanone and 200 ml of formamide was refluxed under an air condenser for two hours. It was cooled, poured into water and the pH adjusted to 8-9 by adding ammonium hydroxide. Chloroform was added to the solution, and solid separated and was filtered and washed with chloroform; yield 19.3 g. This was recrystallized from dimethylformamide, filtered and washed with acetonitrile; yield 14.7 g, m.p. 244°-245° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04159338
Source datasetuspto-grants-1979_06
ORD IDord-5f0bc647402b411d9a467987d806ffe4
Source noteuspto-grants-1979_06