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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 395600Generated: October 30, 2026

Guaiacol → HCID 12085651, compound

https://huagongshe.com/reaction/395600

Reaction equation

Participants

RoleNameHCIDCharge
ReactantGuaiacolHCID 460—
ReactantTributylphosphineHCID 13831—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
ReactantHCID 18174738HCID 18174738—
SolventTolueneHCID 1140—
SolventTetrahydrofuranHCID 8028—
ProductHCID 12085651HCID 12085651—

Reaction Steps

To a mixture of 4-(5-chloro-2-thienyl)-5-oxazolebutanol (800 mg), 2-methoxyphenol (770 mg), tributylphosphine (1.24 g) and tetrahydrofuran (10 ml) was added dropwise a toluene solution of diethyl azodicarboxylate (40%, 2.61 g) at room temperature, and the resulting mixture was stirred for 1 hour. After the reaction mixture was concentrated, the residue was subjected to silica gel column chromatography, and 4-(5-chloro-2-thienyl)-5-[4-(2-methoxyphenoxy)butyl]oxazole was obtained as an oil (420 mg, 37%) from an ethyl acetate-hexane (1:4, v/v)-eluted fraction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06605629B1
Source datasetuspto-grants-2003_08
ORD IDord-2ccb8789697e4992ad6e59563291042e
Source noteuspto-grants-2003_08