Sulfoxide-directed enantioselective synthesis of functionalized dihydropyrans.
[reaction: see text] The highly selective base-promoted cyclization of enantiopure sulfinyl dienols affords allylic sulfinyl dihydropyrans.
Fernández de la Pradilla
Roberto
R
Instituto de Química Orgánica, CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain. iqofp19@iqog.csic.es
Tortosa
Mariola
M