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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 866559Generated: October 30, 2026

Mandelic Acid → HCID 20319578, compound

https://huagongshe.com/reaction/866559

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMandelic AcidHCID 1292—
ReactantEthyl 3-amino-4-hydroxy-phenyl-propionateHCID 12202638—
SolventO-XyleneHCID 7237—
ProductHCID 20319578HCID 20319578—

Reaction Steps

A mixture of ethyl 2-(3-amino-4-hydroxyphenyl)propionate (1.2 g.), mandelic acid (1 g.) and xylene (50 ml.) was heated using a Dean and Stark apparatus. After 24 hours, the solution was evaporated to dryness and the residue was taken up in chloroform. This solution was washed first with sodium hydroxide solution, then with hydrochloric acid and finally dried over sodium carbonate. The solution was evaporated to dryness to give ethyl 2-[2-(α-hydroxybenzyl)-5-benzoxazolyl]propionate, the structure of which was confirmed by n.m.r. spectroscopy.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04100168
Source datasetuspto-grants-1978_07
ORD IDord-18e4911cdbba466183bdb3bedc628095
Source noteuspto-grants-1978_07