Stereoselective free-radical cyclization on a sugar template the sulphonyl radical as a synthetic tool for functionalized glycosides
作者:Robert Nouguier、Catherine Lesueur、Enzo De Riggi、Michèle Paula Bertrand、Albert Virgili
DOI:10.1016/s0040-4039(00)94437-x
日期:1990.1
The addition of a sulphonyl radical to the external double bond of an allyl glycal generates a pro-chiral carbon radical which adds to the glycal double bond with a high diastereoselectivity. Through three consecutive radical steps, the configurations of three new asymmetric centers are controlled.