Two Efficient Syntheses of Protected 4‐Deoxy‐<scp>D</scp>‐lyxo‐hexose (4‐Desoxy‐<scp>D</scp>‐mannose)
作者:Karsten Krohn、Ivan Shuklov
DOI:10.1080/07328300600770519
日期:2006.6
procedure, a nucleophilic displacement of the allylic mesylate 4 by hydride was combined with a highlystereoselective osmylation of olefin 6 to afford diol 7. In the second radical procedure, tributyl tin hydride was substituted by the cheap and environmentally friendly hypophosphorous acid as a hydrogen donor in the reduction of xanthate 13 to 4‐deoxy lyxo‐hexose 14.