Organic chemistry of enyne sulfones: convenient one-pot synthesis of 2-ethoxy-3-ethynyl-4-methylene-2-perfluoroalkyl-3-(phenylsulfonyl)tetrahydrofurans
M. Yoshimatsu et J. Murase, Organic chemistry of enyne sulfones: convenient one-pot synthesis of 2-ethoxy-3-ethynyl-4-methylene-2-perfluoroalkyl-3-(phenylsulfonyl)tetrahydrofurans, J CHEM S P1, (24), 2000, pp. 4427-4431
One-pot cycloaddition of the enyne sulfones 1-3 and 5 with propargylic alko
xides stereoselectively proceeds in DMF and exclusively gives the 2-ethoxy-
3-ethynyl-4-methylene-2-perfluoroalkyl-3-(phenylsulfonyl)tetrahydrofurans 6
a-e, 7a,b, 8a,b and 9a,b.