Selective Metal-Free Deoxygenation of Unsymmetrical 1,2-Dicarbonyl Compounds by Chlorotrimethylsilane and Sodium Iodide
作者:Ling-Zhi Yuan、Dolor Renko、Ilhem Khelifi、Olivier Provot、Jean-Daniel Brion、Abdallah Hamze、Mouad Alami
DOI:10.1021/acs.orglett.6b01491
日期:2016.7.1
For the first time, the combination of chlorotrimethylsilane with NaI is used as a selective reducting system toward 1,2-diketones. This combination is successfully evaluated with several unsymmetrically benzil derivatives, which are reduced in good yields and with a total α-regioselectivity at room temperature. Identification of benzoin intermediates is achieved, and a mechanistic radical process
首次将氯三甲基硅烷与NaI的组合用作对1,2-二酮的选择性还原体系。用几种不对称的苯甲腈衍生物成功评估了这种组合,这些衍生物以良好的收率降低,在室温下具有总的α-区域选择性。实现了对安息香中间体的鉴定,并提出了机理自由基过程。