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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 892941Generated: October 27, 2026

Methyl Isocyanate → 1-{1,2-Dimethyl-1-[(p-tolylsulfonyl)carbamoyl]propyl}-3-methylurea

https://huagongshe.com/reaction/892941

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl IsocyanateHCID 12228—
Reactant2-Amino-2,3-dimethyl-N-(p-tolylsulfonyl)butyramide hydrochlorideHCID 20089870—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
Product1-{1,2-Dimethyl-1-[(p-tolylsulfonyl)carbamoyl]propyl}-3-methylureaHCID 14695762—

Reaction Conditions

Temperature-30 °C

Reaction Steps

A solution of 2-amino-2,3-dimethyl-N-(p-tolylsulfonyl)butyramide hydrochloride (5 g, 15.58 mmols) dissolved in 50 mL of DMF under nitrogen is cooledto -30° C. Then 10 mL of methyl isocyanate in 10 mL of THF is added at such a rate that temperature is maintained at -30° C., and the reaction mixture is allowed to stir for two hours at -30° C. and then for 16 hours at room temperature.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05120854
Source datasetuspto-grants-1992_06
ORD IDord-6b2866f7972e4eada716defb651ed024
Source noteuspto-grants-1992_06