Triethylamine → 40316-56-1

Participants

Reaction Steps

To a mixture of (E)-5-phenyl-pent-2-en-4-yn-1-ol (Method 1b) (4.9 g, 31.0 mmol) and triethylamine (3.8 g, 38.0 mmol) in dry dichloromethane (200 mL) was added methanesulfonyl chloride (3.8 g, 33 mmol) dropwise. Stirring was continued at room temperature overnight. The reaction mixture was concentrated in vacuo and the residue washed with heptane/dichloromethane (×2) to give 4.5 g (82%) crude (E)-(5-chloro-pent-3-en-1-ynyl)-benzene.

Provenance & Evidence