反应详情

A suspension of 2-(tetrahydro-pyran-4-yloxymethyl)-acrylic acid ethyl ester (2.2 g, 10.2 mmol) in ethanol (100 ml) was treated with a solution of NaHCO3 (0.86 g, 10.2 mmol) in water ml (10 ml) and benzyl mercaptan (1.21 ml, 10.2 mmol) at room temperature overnight. Ethanol evaporated off under reduced pressure, crude partitioned between ethyl acetate and water, organic layer separated and purified by mplc eluting with 1:9 to 2:8 v/v ethyl acetate-heptane mixture to give the title compound as pale yellow oil (1.27 g). MS: 339 (MH+); LCMS (Protocol B) retention time 4.3 minutes.

1. customEthanol evaporated off under reduced pressure, crude
2. custompartitioned between ethyl acetate and water, organic layer
3. customseparated
4. custompurified
5. washby mplc eluting with 1:9 to 2:8 v/v ethyl acetate-heptane mixture