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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 963805Generated: November 3, 2026

Acetic Anhydride → 1-(2-Fluoro-2-(methoxycarbonyl)ethenyl)-1-(2-fluoro-4-trifluoromethylphenyl) cyclopropane

https://huagongshe.com/reaction/963805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantMethyl 2,2-dichloro-2-fluoroacetateHCID 13612258—
Reactant1-[2-Fluoro-4-(trifluoromethyl)phenyl]cyclopropane-1-carbaldehydeHCID 19083335—
CatalystZincHCID 23994—
CatalystCuprous chlorideHCID 62652—
SolventTetrahydrofuranHCID 8028—
Product1-(2-Fluoro-2-(methoxycarbonyl)ethenyl)-1-(2-fluoro-4-trifluoromethylphenyl) cyclopropaneHCID 5416013444%

Reaction Steps

The method of Example 1 was repeated using zinc powder (1.3 g), copper (I) chloride (0.22 g), molecular sieve 4A (1.6 g), tetrahydrofuran (20 ml), 1-(2-fluoro-4-tri-fluoromethylphenyl)-1-formylcyclopropane (1.39 g), acetic anhydride (0.58 ml) and methyl dichlorofluoroacetate to yield the title compound (0.81 g, 44%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05763700
Source datasetuspto-grants-1998_06
ORD IDord-d3f6d3674a45445c9403249d4357c0f8
Source noteuspto-grants-1998_06