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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1603939Generated: October 29, 2026

Diethyl Oxalate → Ethyl 8-[(E)-2-[4-(4-phenylbutoxy)-2-fluorophenyl]-ethen-1-yl]-4-oxo-4H-1-benzopyran-2-carboxylate

https://huagongshe.com/reaction/1603939

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl OxalateHCID 7268—
Reactant3'-[(E)-2-[4-(4-Phenylbutoxy)-2-fluorophenyl]ethen-1-yl]-2'-hydroxyacetophenoneHCID 19606370—
ProductEthyl 8-[(E)-2-[4-(4-phenylbutoxy)-2-fluorophenyl]-ethen-1-yl]-4-oxo-4H-1-benzopyran-2-carboxylateHCID 19606361—

Reaction Steps

Following the process described in example 1 (point A), starting from 3'-[(E)-2-[4-(4-phenylbutoxy)-2-fluorophenyl]ethen-1-yl]-2'-hydroxy-acetophenone and diethyl oxalate, the title compound was prepared (quantitative yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05990142
Source datasetuspto-grants-1999_11
ORD IDord-2f128301266c471f81c1147c5490e507
Source noteuspto-grants-1999_11