Potassium Hydroxide → 1,3-Dichloro-5-ethynylbenzene

Participants

Reaction Steps

To a solution of (3,5-dichloro-phenylethynyl)-trimethylsilane (4.85 g, 19.9 mmol) in methanol (50 mL) was added 1M potassium hydroxide (30 mL). The reaction mixture was stirred 1 h at room temperature and evaporated. The residue was treated with water (10 mL) and extracted with 3×40 mL diethyl ether. The tried organic phases were evaporated to give the desired 1,3-dichloro-5-ethynyl-benzene product in 2.3 g yield.

Provenance & Evidence