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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1365101Generated: October 30, 2026

Benzenepropanoic acid → (S)-4-Isopropyl-2-phenethyl-4,5-dihydrooxazole

https://huagongshe.com/reaction/1365101

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenepropanoic acidHCID 107—
ReactantL-ValinolHCID 640993—
SolventChlorobenzeneHCID 7964—
Product(S)-4-Isopropyl-2-phenethyl-4,5-dihydrooxazoleHCID 1343583986%

Reaction Steps

Under an argon atmosphere, a mixture of 3-phenylpropionic acid (3.0 mmol), (L)-valinol (3.6 mmol), Zn4(OCOCF3)6O (0.15 mmol) and chlorobenzene (5 mL) was heated under reflux for 12 hours. From the resulting solution, the solvent was removed using an evaporator, and the residues were purified by silica gel column chromatography (hexane/ethyl acetate=10/1 (V/V)) to give (S)-4-isopropyl-2-(2-phenylethyl)-1,3-oxazoline in 86% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07888513B2
Source datasetuspto-grants-2011_02
ORD IDord-a7970cc0ba3f48908a2f943eb9c439c1
Source noteuspto-grants-2011_02