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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 722622Generated: October 26, 2026

p-Toluenesulfonic acid monohydrate → 2-(3-Nitro-4-chlorophenyl)-5-phenylbenzoxazole

https://huagongshe.com/reaction/722622

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantN-(5-Phenyl-2-hydroxyphenyl)-3-nitro-4-chlorobenzamideHCID 21884357—
Product2-(3-Nitro-4-chlorophenyl)-5-phenylbenzoxazoleHCID 21884327—

Reaction Steps

Prepared by the method of Example 15c), from N-(5-phenyl-2-hydroxyphenyl)-3-nitro-4-chlorobenzamide (3.76 g, 10 mmol) and p-toluenesulfonic acid monohydrate (3.80 g, 20 mmol) the subtitle compound was obtained (1.28 g, 40%). MS 351.1 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07138425B2
Source datasetuspto-grants-2006_11
ORD IDord-da246c55d9c044708b7ef0bc9b6bc781
Source noteuspto-grants-2006_11