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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973182Generated: October 31, 2026

Triethylamine → N,N-Dimethyl-N′-[3-[[(methylamino)carbonyl]oxy]phenyl]thiourea

https://huagongshe.com/reaction/1973182

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantEthyl AcetateHCID 8857—
ReactantMethyl IsocyanateHCID 12228—
ReactantThiourea, N'-(3-hydroxyphenyl)-N,N-dimethyl-HCID 5368133—
SolventHexaneHCID 8058—
ProductN,N-Dimethyl-N′-[3-[[(methylamino)carbonyl]oxy]phenyl]thioureaHCID 21493114—

Reaction Conditions

Temperature20 °C

Reaction Steps

1,1-dimethyl-3-(meta-methylcarbamoyloxyphenyl)-2 -thiourea is prepared by charging to a suitable equipped reaction vessel about 32.7 parts by weight of 1,1-dimethyl-3-(meta-hydroxyphenyl)-2-thiourea, about 100 parts by weight of ethyl acetate, about 12 parts by weight of methyl isocyanate and about 1 part by weight triethylamine, refluxing for about 1 hour with stirring, diluting the resulting slurry with about 100 parts by weight of hexane, cooling to about 20° C., recovering the precipitate from the remainder by filtration, washing the recovered solid with ethyl acetate and hexane and air drying.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03996275
Source datasetuspto-grants-1976_12
ORD IDord-54392a9588c14b6691541cb84e5ab53e
Source noteuspto-grants-1976_12