1,2-O-alkylidene-α-D-glycopyranoses. Part I. The diastereoisomeric 1,2-O-(1-methylpropylidene)-α-D-glucopyranoses
Abstract
The reaction between tetra-O-acyl-α-(and-β-)D-glucopyranosyl halides and cadmium dialkyls has been used as a basis for the synthesis of the diastereoisomeric 1,2-O-(1-methylpropylidene)-α-D-glucopyranoses. The configurations at the cyclic ketal carbon may be assigned from n.m.r. data.