A previous report3 showed that primary alcohols in acetal linkage may be exchanged with glycerol leading to the formation of 1, 2-cyclic glycerol acetals. During the synthesis of the 1, Sbenzylidene glycerol acetal (2-phenyl-4-hydroxymeth yl-l, 3-dioxolane) by transacetalation from the diethylacetal of benzaldehyde a
