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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 660846Generated: October 25, 2026

p-Toluohydrazide → 1-Methyl-3-[(4-methylbenzoyl)amino]urea

https://huagongshe.com/reaction/660846

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-ToluohydrazideHCID 77174—
ReactantCarbamic acid, N-methyl-, 4-nitrophenyl esterHCID 79892—
ReactantDiisopropylethylamineHCID 81531—
SolventDichloromethaneHCID 6344—
Product1-Methyl-3-[(4-methylbenzoyl)amino]ureaHCID 3271870—

Reaction Steps

653 mg (3.33 mmol) of 4-nitrophenyl methylcarbamate and 473 mg (3.22 mmol) of N,N-diisopropylethylamine are added to 500 mg (3.33 mmol) of 4-methylbenzoic acid hydrazide in 15 ml dichloromethane and the mixture stirred overnight at room temperature. The precipitate formed is recovered by filtration, washed with diethyl ether and dried in vacuo. 602 mg (87% of theory) of the target compound are thus obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08084481B2
Source datasetuspto-grants-2011_12
ORD IDord-6b5361132a2e41c3816495284ebab3d1
Source noteuspto-grants-2011_12