The stereocontrolled formation of cyclic vicinal cis-diols via a samarium diiodide pinacol coupling of dialdehydes
作者:Jose Luis Chiara、Walter Cabri、Stephen Hanessian
DOI:10.1016/s0040-4039(00)92024-0
日期:1991.2
Aliphatic 1,5- and 1,6 dialdehydes with and without α-substituents, as well as derivatives of carbohydrate dialdehydes undergo a pinacol coupling reaction in the presence of SmI2 to give cis-diols as the preponderant products. When α-alkoxy groups are present, the diol has an orientation that is opposite to such groups.
具有和不具有α-取代基的脂肪族1,5-和1,6二醛以及碳水化合物二醛的衍生物在SmI 2的存在下进行频哪醇偶联反应,以顺式二醇为主的产物。当存在α-烷氧基时,二醇具有与这样的基团相反的取向。