A. J. Al-Kadir, N. Baggett, J. M. Webber
Aug 3, 1992
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Journal
Carbohydrate Research
Abstract
Abstract Ethylidenation of 1,6-di-O-benzoyl-2,4-O-benzylidene- d -glucitol gave the 3,5-O-ethylidene derivative in poor yield, whereas reaction with 2,2-dimethoxypropane gave the 3,5-O-isopropylidene derivative in good yield. Removal of the benzoyl and benzylidene groups, with further derivatisation, gave a variety of compounds containing the relatively unstable 3,5-acetal ring. Attempted tosylation of 3,5-O-isopropylidene- d -glucitol gave a derivative of 1,4-anhydro- d -glucitol. Reduction of various ditosylates revealed selective reaction of axial tosyloxymethyl groups.