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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 323061Generated: October 30, 2026

2-Bromophenyl isocyanate → N-(2-hydroxy 3,4-difluorophenyl) N'-(2-bromophenyl)urea

https://huagongshe.com/reaction/323061

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Bromophenyl isocyanateHCID 137097—
Reactant6-Amino-2,3-difluorophenolHCID 2778441—
ProductN-(2-hydroxy 3,4-difluorophenyl) N'-(2-bromophenyl)ureaHCID 22011339—

Reaction Steps

The urea was prepared from 2-hydroxy 3,4-difluoro aniline (0.290 g, 2 mmol) and 2-bromo phenyl isocyanate (0.4 g) by general Method B. It was purified by dilution with methylene chloride and precipitation with hexane (0.254 g, 37%). EI-MS m/z 343 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211373B1
Source datasetuspto-grants-2001_04
ORD IDord-c6f1e3bbc22a4fe9a13f1530cff2139b
Source noteuspto-grants-2001_04