Tetrahydropyran-2-methanol → 99335-60-1

A stirred solution of 13.9 g of tetrahydro-2-pyranylmethanol and 18.2 g of triethylamine in 250 ml of methylene chloride was cooled to -10° C. and 15.1 g of methansulfonyl chloride was added dropwise over 5 minutes while maintaining the temperature at -10° C. to 0° C. using a cooling bath. The bath was removed and the mixture was stirred for 1/2 hour while the temperature reached 16° C. The reaction mixture was washed successively with 150 ml of ice water, 150 ml of 10% hydrochloric acid solution, 150 ml of saturated sodium bicarbonate solution and 150 ml of saturated sodium chloride solution, then dried (MgSO4) and evaporated under vacuum at 50° C. to give 23.7 g of a yellow oil, which was Claisen distilled to yield 19.7 g of the desired product; b.p. 110° C. (0.2 mm).

1. temperaturewhile maintaining the temperature at -10° C. to 0° C.
2. customThe bath was removed
3. customreached 16° C
4. washThe reaction mixture was washed successively with 150 ml of ice water, 150 ml of 10% hydrochloric acid solution, 150 ml of saturated sodium bicarbonate solution and 150 ml of saturated sodium chloride solution
5. dry with materialdried (MgSO4)
6. customevaporated under vacuum at 50° C.

ORD record

ord-099c0023bc964576813d34591aaecdef

Source dataset

uspto-grants-1986_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04606753