Synthesis of protected syn 1,3-diols by intramolecular conjugate addition to vinyl sulfones
作者:Laurence Grimaud、Delphine Rotulo、Rafael Ros-Perez、Ludivine Guitry-Azam、Joëlle Prunet
DOI:10.1016/s0040-4039(02)01796-3
日期:2002.10
A short route to sulfones 9a–c is described. These synthons encompassing a syn 1,3-diol motif are model compounds for the C16–C24 fragment of Dolabelides. The benzylidene protecting group can be reduced regioselectively to furnish β-hydroxysulfones 10a–b. First attempts of Julia coupling of the dianions derived from these substrates with aldehydes and ketones are also reported.
描述了通向砜9a – c的捷径。这些合成子包含一个顺式-1,3-二醇基序是用于Dolabelides的C16-C24片段的模型化合物。亚苄基保护基可以区域选择性还原,得到β-羟基砜10a – b。还报道了将这些底物衍生的二价阴离子与醛和酮进行Julia偶联的首次尝试。