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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1704688Generated: November 1, 2026

4-Hydroxybenzaldehyde → 4-(Benzo[d]oxazol-2-yl)phenol

https://huagongshe.com/reaction/1704688

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-HydroxybenzaldehydeHCID 126—
Reactant2-AminophenolHCID 5801—
SolventNitrobenzeneHCID 7416—
Product4-(Benzo[d]oxazol-2-yl)phenolHCID 278558764%

Reaction Steps

Equal molar quantities of p-hydroxybenzaldehyde and o-aminophenol in excess nitrobenzene was refluxed for 5 hours. The nitrobenzene was removed and the product extracted from the residue with xylene. 2-(4-Hydroxyphenyl)benzoxazole, m.p. 253°, was isolated in 64% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04127501
Source datasetuspto-grants-1978_11
ORD IDord-a3cf78e0d8e84fe6afe6d4f57cfa05c6
Source noteuspto-grants-1978_11