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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2085741Generated: October 31, 2026

Ethylparaben → HCID 22729995, compound

https://huagongshe.com/reaction/2085741

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylparabenHCID 8434—
ReactantTriphenylphosphineHCID 11776—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
Reactant4-Butylbenzyl alcoholHCID 578288—
SolventTetrahydrofuranHCID 8028—
ProductHCID 22729995HCID 22729995—

Reaction Steps

A solution of triphenylphosphine (656 mg, 2.50 mmol) in THF (12 mL) at 0° C. was treated with diethyl azodicarboxylate (442 mg, 2.54 mmol), stirred for 20 minutes, treated with ethyl 4-hydroxybenzoate (350 mg, 2.30 mmol) and 4-butylbenzyl alcohol (414 mg, 2.52 mmol), warmed to room temperature, stirred for 16 hours, and concentrated. The concentrate was purified by flash column chromatography on silica gel with 30% ethyl acetate/hexanes to provide the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06720338B2
Source datasetuspto-grants-2004_04
ORD IDord-3b587eb0b11746f99c2fe12b0ba0daeb
Source noteuspto-grants-2004_04