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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1390519Generated: October 31, 2026

Acetylphenylhydrazine → HCID 21332494, compound

https://huagongshe.com/reaction/1390519

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetylphenylhydrazineHCID 8247—
ReactantMethyl IsocyanateHCID 12228—
CatalystTriethylamineHCID 8471—
SolventDichloromethaneHCID 6344—
ProductHCID 21332494HCID 21332494—

Reaction Conditions

Temperature25 °C

Reaction Steps

A 5.7-g (0.1-mol) sample of methyl isocyanate was added dropwise to a solution of 15.0 g (0.1 mol) 1-acetyl-2-phenyl-hydrazine and 2 drops triethylamine in 200 ml dichloromethane. The resulting reaction mixture was stirred for 2 hours at about 25° C., refluxed for about 16 hours and evaporated under reduced pressure to give 21 g of crude 1-acetyl-2-phenyl-4-methyl semicarbazide, as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04139363
Source datasetuspto-grants-1979_02
ORD IDord-7f823fd8c5e54291ad1edc2a75c03c27
Source noteuspto-grants-1979_02