Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 867218Generated: October 27, 2026

Thionyl Chloride → 3(2H)-Oxazoleacetyl chloride, 2-oxo-4,5-diphenyl-

https://huagongshe.com/reaction/867218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant3(2H)-Oxazoleacetic acid, 2-oxo-4,5-diphenyl-HCID 10447200—
SolventDichloromethaneHCID 6344—
Product3(2H)-Oxazoleacetyl chloride, 2-oxo-4,5-diphenyl-HCID 10638955—

Reaction Steps

A mixture of 4,5-diphenyl-2-oxo-4-oxazolin-3-ylacetic acid (2.1 g, 7.1 mmol) [J. Org. Chem., 38, 3034 (1973)], thionyl chloride (5 ml) and methylene chloride (20 ml) is refluxed for 2.5 hours. After cooling to room temperature the solvent is removed in vacuo and resulting oil crystallizes on standing. The product is triturated with ether-hexane to give the title compound: 2.0 g mp 104°-112°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04103086
Source datasetuspto-grants-1978_07
ORD IDord-e5be48a9a9b64d1e9275b4ced6c6741f
Source noteuspto-grants-1978_07