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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1719754Generated: November 2, 2026

(1R,cis)2,2-dimethyl-3-[(Z)3-oxo-3-(2,2,2-trifluoroethoxy)-1-propenyl]-cyclopropane-carboxylic acid → (R)alpha-ethynyl-3-phenoxy-benzyl (1R,cis) 2,2-dimethyl-3[(Z) 3-oxo-3(2,2,2-trifluoroethoxy)-1-propenyl]-cyclopropane-carboxylate

https://huagongshe.com/reaction/1719754

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(1R,cis)2,2-dimethyl-3-[(Z)3-oxo-3-(2,2,2-trifluoroethoxy)-1-propenyl]-cyclopropane-carboxylic acidHCID 13390085—
Reactant(R)alpha-ethynyl-3-phenoxy-benzyl alcoholHCID 53829177—
SolventChloroformHCID 6212—
Product(R)alpha-ethynyl-3-phenoxy-benzyl (1R,cis) 2,2-dimethyl-3[(Z) 3-oxo-3(2,2,2-trifluoroethoxy)-1-propenyl]-cyclopropane-carboxylateHCID 131714332—

Reaction Steps

Using the orocedure of Step F of Example 9, the acid of Step D of Example 1 and (R)α-ethynyl-3-phenoxy-benzyl alcohol were reacted to obtain (R)α-ethynyl-3-phenoxy-benzyl (1R,cis) 2,2-dimethyl-3[(Z) 3-oxo-3(2,2,2-trifluoroethoxy)-1-propenyl]-cyclopropane-carboxylate with a specific rotation of [α]D20 =+42°±1.5° (c=1% in CHCl3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04542142
Source datasetuspto-grants-1985_09
ORD IDord-3aa903c2e78b4f8d9336e2b7a0fa6b73
Source noteuspto-grants-1985_09