K. Toshima et al., GLYCOSIDATION OF GLYCALS BY 2,3-DICHLORO-5,6-DICYANO-P-BENZOQUINONE (DDQ) AS A CATALYTIC PROMOTER, Journal of the Chemical Society, Chemical Communications, (8), 1993, pp. 704-706
O-Glycosidations of glycals 1, 8 and 9 with several alcohols by using
a catalytic amount of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) un
der neutral conditions proceeds smoothly to give the corresponding 2,3
-unsaturated glycosides in high yields.