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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2299419Generated: October 31, 2026

Potassium Carbonate → 4-Ethynyl-1-(1-benzyloxycyclopropyl)-2-methyl-benzene

https://huagongshe.com/reaction/2299419

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl4-[4-(1-benzyloxycyclopropyl)-phenylethynyl]-benzoateHCID 22568905—
SolventMethanolHCID 887—
Product4-Ethynyl-1-(1-benzyloxycyclopropyl)-2-methyl-benzeneHCID 22568852—

Reaction Steps

Using General Procedure E; [4-(1-benzyloxycyclopropyl)-3-methyl-phenylethynyl]-trimethylsilane (Intermediate 75, 300.0 mg, 0.95 mmols) in methanol (6 mL) was treated with potassium carbonate (120.0 mg, 0.87 mmol) and stirred overnight at ambient temperature. The crude alkyne (185 mg, 79%) was used directly in the next reaction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06495552B2
Source datasetuspto-grants-2002_12
ORD IDord-73e2879b66164707ac44266bc7d4c257
Source noteuspto-grants-2002_12