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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 24158Generated: October 30, 2026

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

https://huagongshe.com/reaction/24158

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 numberUS06855512B2
Source datasetuspto-grants-2005_02
ORD IDord-70b4389af94e4a059e766f1f01e34246
Source noteuspto-grants-2005_02