Utilization of a Trimethylsilyl Group as a Synthetic Equivalent of a Hydroxyl Group via Chemoselective C(sp<sup>3</sup>)–H Borylation at the Methyl Group on Silicon
作者:Takeru Torigoe、Toshimichi Ohmura、Michinori Suginome
DOI:10.1021/acs.joc.6b02917
日期:2017.3.17
chemoselective C(sp3)–H borylation of the methyl group on silicon. The (borylmethyl)silyl group formed by C(sp3)–H borylation is treated with H2O2/NaOH, and the resulting (hydroxymethyl)silyl group is converted into a hydroxyl group by Brook rearrangement, followed by oxidation of the resulting methoxysilyl group under Tamao conditions. An alternative route proceeding through the formylsilyl group formed from
基于铱催化的硅上甲基的化学选择性C(sp 3)-H硼化,可将三甲基甲硅烷基烷烃转化为相应的醇。用H 2 O 2处理由C(sp 3)–H硼化形成的(硼甲基)甲硅烷基然后,在Tamoo条件下,将所得的(羟甲基)甲硅烷基通过布鲁克重排转化为羟基,然后将所得的甲氧基甲硅烷基氧化。还建立了通过Swern氧化通过由(羟甲基)甲硅烷基形成的甲硅烷基甲硅烷基进行的替代途径。该方法适用于取代的三甲基甲硅烷基环烷烃和1,1-二甲基-1-硅环戊烷,以转化成相应的立体定义的环烷基醇和1,4-丁二醇。