Highly stereoselective synthesis of vicinal diols by stannous chloride-mediated addition of hydroxyallylic stannanes to aldehydes
作者:Makoto Yasuda、Tatsuya Azuma、Kensuke Tsuruwa、Srinivasarao Arulananda Babu、Akio Baba
DOI:10.1016/j.tetlet.2009.01.137
日期:2009.7
A new protocol for the synthesis of vicinaldiols was accomplished by the reaction of unprotected α-hydroxymethylmetals, as hydroxymethyl anion equivalents, with aldehydes. The treatment of hydroxyallylic stannanes, which were prepared from α,β-unsaturated aldehydes and Bu3SnLi in situ, with various aldehydes gave but-3-en-1,2-diols in the presence of SnCl2. The stereochemistry of the diol and olefin