P. Crotti et al., DIFUNCTIONALISED OXIRANE SYSTEMS - STEREODIVERGENT SYNTHESIS OF 1,4-2,3-DIANHYDRO-5-O-BENZYL-L-LYXITOL AND 1,4-2,3-DIANHYDRO-5-O-BENZYL-L-RIBITOL, Tetrahedron : asymmetry, 8(10), 1997, pp. 1611-1621
A simple, efficient, stereoselective synthesis of the diastereoisomeri
c cis/trans pair of difunctionalized 1,2-epoxides, 1,4;2,3-dianhydro-5
-O-benzyl-L-lixitol 1 and 1,4;2,3-dianhydro-5-O-benzyl-L-ribitol 2 is
described. Starting from D-(+)-xylose, the synthetic approach to 1 and
2 proceeds through the common intermediate, diol 6, and an appropriat
e sequence of selective functionalizations. (C) 1997 Elsevier Science
Ltd.