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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1974041Generated: October 30, 2026

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

https://huagongshe.com/reaction/1974041

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-HydroxybenzaldehydeHCID 126—
Reactant2-AminophenolHCID 5801—
ReactantNitrobenzeneHCID 7416—
Product4-(Benzo[d]oxazol-2-yl)phenolHCID 278558773%

Reaction Steps

A mixture containing 5.45 g. (0.05 mole) of o-aminophenol and 6.10 g. (0.05 mole) of p-hydroxybenzaldehyde in 75 ml. of nitrobenzene was heated to reflux for 5 hr. On cooling to 30° a dark solid appears which was filtered, washed with hot toluene, and air-dried. Recrystallization from ethanol gave a 73% yield of 4-(2-benzoxazolyl)phenol (mp 255°-258°).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04000148
Source datasetuspto-grants-1976_12
ORD IDord-d57a5e2012724f01acd4e99e4d60c845
Source noteuspto-grants-1976_12