CHEMO-, STEREO- AND REGIOSELECTIVE HYDROGENOLYSIS OF CARBOHYDRATE BENZYLIDENE ACETALS. SYNTHESIS OF BENZYL ETHERS OF BENZYL α-D-, METHYL β-D-MANNOPYRANOSIDES AND BENZYL α-D-RHAMNOPYRANOSIDE BY RING CLEAVAGE OF BENZYLIDENE DERIVATIVES WITH THE LiAlH4-AlCl3

Article abstract of DOI:10.1016/0040-4020(82)80083-5

Treatment of benzyl α-(1) and methyl β-D-mannopyranoside (2) with α,α-dimethoxytoluene gave the exo and endo isomers (3,5 and 4,6) of the dibenzylidene derivatives of 1 and 2.Hydrogenolysis of the exo isomers (3 and 5) with a molar equivalent of AlH2Cl ga