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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1007333Generated: October 25, 2026

Pyridinium chloride → 6-Chloro-2-(3-fluoro-4-hydroxyphenyl)benzo[d]oxazol-5-ol

https://huagongshe.com/reaction/1007333

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
ReactantN-(4-Chloro-2,5-dihydroxyphenyl)-3-fluoro-4-hydroxybenzamideHCID 21907381—
Product6-Chloro-2-(3-fluoro-4-hydroxyphenyl)benzo[d]oxazol-5-olHCID 135493223—

Reaction Steps

The title compound was prepared in substantially the same manner as described in Example 1, step b, from N-(4-chloro-2,5-dihydroxyphenyl)-3-fluoro-4-hydroxybenzamide and pyridine hydrochloride and was obtained as a white solid, m.p. 258-260° C.; MS m/e 278 (M−H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06794403B2
Source datasetuspto-grants-2004_09
ORD IDord-86088c20403149d7ae34d1b4694c9419
Source noteuspto-grants-2004_09