Triethylamine → Oxan-4-yl methanesulfonate

Participants

Reaction Steps

At r.t. to a solution of tetrahydro-4H-pyran-4-ol (90 uL, 1 mmol; Aldrich, Cat. No. 198234) in methylene chloride (3 mL) was added methanesulfonyl chloride (91 uL, 1.2 mmol), followed by triethylamine (0.20 mL, 1.5 mmol) and 4-dimethylaminopyridine (12 mg, 0.098 mmol). The mixture was stirred at r.t. for 3 h. It was diluted with methylene chloride. The solution was washed with water and brine, dried over Na2SO4. After filtration, the filtrate was concentrated to yield 0.21 g of the product (crude) which was directly used in the next step reaction without further purification.

Provenance & Evidence