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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 628499Generated: October 30, 2026

Triphosgene → 1-Bromo-3-isocyanato-2-methyl-benzene

https://huagongshe.com/reaction/628499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphosgeneHCID 94429—
Reactant3-Bromo-o-toluidineHCID 123538—
SolventTolueneHCID 1140—
Product1-Bromo-3-isocyanato-2-methyl-benzeneHCID 65542331106.3%

Reaction Steps

A mixture of 1-bromo-2-methyl-3-aminobenzene 25.0 g, triphosgene 60.0 g and toluene 400 ml was stirred with heating under reflux for three hours. The reaction mixture after standing to cool was concentrated under reduced pressure to give 1-bromo-3-isocyanato-2-methylbenzene 30.3 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09314023B2
Source datasetuspto-grants-2016_04
ORD IDord-5f6203d8a4e94671af14d4942d38cdf1
Source noteuspto-grants-2016_04