Citation: Jian Min MAO, Hong Ming CHEN, Jian ZHANG, Meng Shen CAI. STUDIES ON GLYCOSIDES XⅢ.——HIGHLY STEREOSELECTIVE SYNTHESIS OF PER-O-BENZYLATED O-,S-α-D-GALACTOPYRANOSIDES AND GALACTOSYL CARBOXYUTES FROM PER-O-BENZYIATED GALACTOSYL TRIFLUOROACETATE[J]. Chinese Chemical Letters, ;1994, 5(6): 465-466. shu

STUDIES ON GLYCOSIDES XⅢ.——HIGHLY STEREOSELECTIVE SYNTHESIS OF PER-O-BENZYLATED O-,S-α-D-GALACTOPYRANOSIDES AND GALACTOSYL CARBOXYUTES FROM PER-O-BENZYIATED GALACTOSYL TRIFLUOROACETATE

School of Pharmaceutical Sciences, Beijing Medical University, Beijing 100083

Received Date: 5 February 1994

α Linked O-and S-galactopyranosides,and galactopyranosyl carboxylates were synthesized as the sole products from 2.3,4,6-tetra-O-benzyl-1-O-trifluoroacetyl-α-D-galacto-pyranose (2).The behavior of the nucleophiles and the two kinds of catalysts (BF₃·OEt₂ and TMSOTf) were discussed.
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