Stereoselective synthesis of vicinal diols by the stannous chloride-mediated reaction of unprotected hydroxyallylic stannane with carbonyl compounds
作者:Makoto Yasuda、Kensuke Tsuruwa、Tatsuya Azuma、Srinivasarao Arulananda Babu、Akio Baba
DOI:10.1016/j.tet.2009.09.063
日期:2009.11
The highly stereoselective synthesis of vicinal diols was accomplished by the reaction of hydroxymethyl anion equivalents with carbonyl compounds. The reaction of hydroxyallylic stannanes with various aldehydes gave but-3-en-1,2-diols in the presence of SnCl2. The diol moiety showed syn-diastereoselectivity. A mechanism for this reaction was proposed: transmetalation of the hydroxyallylic stannane