A Facile and Stereoselective Synthesis of 3,4,6-Tri-O-Acetyl-2-Deoxy-2-Phthalimido-β-D-Glucopyranosyl Chloride

Author:

Cao Zhiling12,Liu Wenjie1,Qu Yingying1,Yao Guowei3,Gao Dachao1,Liu Weiwei1

Affiliation:

1. Jiangsu Key Laboratory of Marine Biotechnology, Huaihai Institute of Technology, Lianyungang 222005, P. R. China

2. Jiangsu Marine Resources Development Research Institute, Lianyungang 222001, P. R. China

3. School of Life Science, Beijing Institute of Technology, Beijing 100081, P. R. China

Abstract

Acetylation of D-glucosamine catalysed by sulfuric acid and N-phthaloylation of the glucosyl acetate yielded 1,3,4,6-tetra- O-acetyl-2-deoxy-2-phthalimido-α-D-glucopyranose. This gave the corresponding pure β-glucosyl chloride upon treatment with PCl5-BF3. An anomeric chlorination with thionyl chloride combined with the Lewis acids (ZnCl2, SnCl4 and BiCl3) resulted in an α/β anomer mixture.

Publisher

SAGE Publications

Subject

General Chemistry

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