Stereospecific C-β-glycosidation and synthesis of 4,7-anhydro-5,6-isopropylidene-4 (S), 5(S), 6(R), 7(R)-tetrahydroxyoxocan-2-one

Article abstract of DOI:10.1080/00397919308011209

Wittig reaction of 2,3-0-isopropylidene-5-0-P-anisyldiphenylmethyl-β-D-ribofuranose (2) with methoxycarbonyl-methylene triphenylphosphorane was accompanied by spontaneous cyclization to generate 3 stereospecifically. Deprotection of 5-OH followed by mild