Diastereoselective Synthesis of <i>syn</i>-1,3-Diols by Titanium-Mediated Reductive Coupling of Propargylic Alcohols
作者:Guo-Qiang Tian、Thomas Kaiser、Jiong Yang
DOI:10.1021/ol902609k
日期:2010.1.15
A titanium-mediated, hydroxy-directed reductive coupling reaction of propargylic alcohols and aldehydes/ketones is described. Excellent diastereoselectivity and synthetically useful yields have been obtained for a range of substrates. This transformation has enabled a highly convergent three-component approach to syn-1,3-diols using (trimethylsilyl)acetylene as a C1 linchpin.
描述了炔丙基醇与醛/酮的钛介导的,羟基定向的还原偶联反应。对于一系列底物,已经获得了出色的非对映选择性和合成有用的产率。这种转变使得能够使用(三甲基甲硅烷基)乙炔作为C1关键化合物,以高度会聚的三组分方法合成合成-1,3-二醇。