Rhodium-Catalyzed Oxidative Annulation of Hydrazines with Alkynes Using a Nitrobenzene Oxidant
作者:Deng Yuan Li、Hao Jie Chen、Pei Nian Liu
DOI:10.1021/ol5030794
日期:2014.12.5
Rhodium-catalyzed oxidative annulation of hydrazines with alkynes has been accomplished using 1,3-dinitrobenzene as an oxidant. A variety of hydrazines with alkynes were converted to 1-aminoindole derivatives in good to high yields. Mechanistic investigations support the idea that 1,3-dinitrobenzene serves as the oxidant during C–H activation. This is, to our knowledge, the first report of a nitrobenzene
铑与炔烃的肼催化氧化环化反应是使用1,3-二硝基苯作为氧化剂完成的。各种带有炔烃的肼以良好或高收率转化为1-氨基吲哚衍生物。机理研究支持了在CH活化过程中1,3-二硝基苯充当氧化剂的观点。据我们所知,这是关于硝基苯化合物在过渡金属催化的C–H活化中用作氧化剂的首次报道。