Regioselective phthalation and succinylation of D‐glucose and D‐galactose using protecting groups: Conversion of the products to organotin derivatives

1,2: 5,6-Di-O-isopropylidene-α-D-glucofuranose was acylated at the free 0-3 position with phthalic and succinic anhydrides. Removal of the protecting groups gave the 3-O-acylglucopyranose compounds which were converted to their acetyl and organostannyl derivatives. A similar sequence of reactions was carried out with 1,2:3,4-di-O-isopropylidene-α-D-galactopyranose.