可见光促进的二硼介导的偶氮苯向氢化偶氮苯的转移氢化反应
Visible-Light-Promoted Diboron-Mediated Transfer Hydrogenation of Azobenzenes to Hydrazobenzenes.
作者信息
Song Menghui, Zhou Hongyan, Wang Ganggang, Ma Ben, Jiang Yajing, Yang Jingya, Huo Congde, Wang Xi-Cun
机构信息
College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
College of Science, Gansu Agricultural University, Lanzhou 730070, China.
出版信息
J Org Chem. 2021 Mar 19;86(6):4804-4811. doi: 10.1021/acs.joc.1c00394. Epub 2021 Mar 10.
A visible-light-promoted transfer hydrogenation of azobenzenes has been developed. In the presence of Bpin and upon visible-light irradiation, the reactions proceeded smoothly in methanol at ambient temperature. The azobenzenes with diverse functional groups have been reduced to the corresponding hydrazobenzenes with a yield of up to 96%. Preliminary mechanistic studies indicated that the hydrogen atom comes from the solvent and the transformation is achieved through a radical pathway.
已开发出一种可见光促进的偶氮苯转移氢化反应。在Bpin存在下且经可见光照射，反应在甲醇中于室温下顺利进行。具有不同官能团的偶氮苯已被还原为相应的氢化偶氮苯，产率高达96%。初步机理研究表明，氢原子来自溶剂，且该转化是通过自由基途径实现的。
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