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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 323053Generated: October 25, 2026

1-Amino-2-naphthol → N-(2-hydroxynaphthyl) N'-(2-bromo phenyl) urea

https://huagongshe.com/reaction/323053

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Amino-2-naphtholHCID 14535—
Reactant2-Bromophenyl isocyanateHCID 137097—
ProductN-(2-hydroxynaphthyl) N'-(2-bromo phenyl) ureaHCID 220113188.4%

Reaction Steps

The urea was prepared from 1-amino 2-hydroxy napthalene (195 mg, 1 mmol) and 2-bromo phenyl isocyanate (1 mmol) by general Method B. It was purified by dilution with methylene chloride and precipitation with hexane. Filtering afforded the title compound (0.030 g, 8%). EI-MS m/z 357 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211373B1
Source datasetuspto-grants-2001_04
ORD IDord-074594b6efd84e80854c3d56ebbd54df
Source noteuspto-grants-2001_04