Synthesis of α -Tocopheryl Glycosides
S. Witkowski* and P. Wałejko
Institute of Chemistry, University of Bialystok, Pilsudskiego 11/4, 15-443 Bialystok, Poland Reprint requests to Dr. St. Witkowski. E-mail: wit@noc.uwb.edu.pl
Z. Naturforsch.56 b,411Ð415 (2001); received April 10, 2000 Vitamin E, Glucosylation,α-Tocopheryl Glycosides
An unusual course of d-α-tocopherol glucosylation by the Helferich method was observed.
The product distribution very depended on acid catalyst and solvent used. Theβ-glucoside was accompanied by an unsaturatedα-glucoside. Other unsaturated d-α-tocopheryl gluco- sides were obtained by reactions with acetylated glucal and 2-acetoxy glucal.