Triethylamine → Cyclopentylmethyl methanesulfonate

Participants

Reaction Steps

At room temperature (r.t.) to a solution of cyclopentanemethanol (0.2 g, 2 mmol, Aldrich, Cat. No. 103985) in methylene chloride (5 mL, 80 mmol) was added methanesulfonyl chloride (180 uL, 2.4 mmol), followed by triethylamine (330 uL, 2.4 mmol), and 4-dimethylaminopyridine (24 mg, 0.20 mmol). The mixture was stirred at r.t. overnight. It was diluted with methylene chloride, washed with water, brine; dried over Na2SO4. After filtration the filtrate was concentrated to yield 0.39 g of the product which was directly used in the next step reaction without further purification.

Provenance & Evidence