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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1390949Generated: October 30, 2026

Acetic Anhydride → HCID 21332184, compound

https://huagongshe.com/reaction/1390949

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 70524951HCID 70524951—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21332184HCID 21332184—

Reaction Conditions

Temperature20 °C

Reaction Steps

A solution of 0.1 mole of 1,6-dimethyl-1H-(1)-benzothieno[3,2-c]pyrazol-3-amine and 30.0 g. of acetic anhydride in 180 ml. of tetrahydrofuran was heated under reflux for 1 hour. The reaction mixture was then cooled to 20° C. and the precipitate which formed was collected by filtration. Recrystallization from N,N-dimethyl formamide/water gave N-(1,6-dimethyl-1H-(1)benzothieno-[3,2-c]pyrazol-3-yl)acetamide, m.p. 253°-255° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04140785
Source datasetuspto-grants-1979_02
ORD IDord-d09b710d913b467f8bd398355339f922
Source noteuspto-grants-1979_02