Synthesis of trisubstituted hydrazine <i>via</i> MnO<sub>2</sub>-promoted oxidative coupling of <i>N</i>,<i>N</i>-disubstituted hydrazine and boronic ester
作者:Jiaoyang Wang、Danfeng Wang、Xiaofeng Tong
DOI:10.1039/d1ob00929j
日期:——
oxidative coupling process between N,N-disubstituted hydrazine and boronic ester is reported. A 1,1-diazene species is firstly generated upon oxidation of a hydrazine substrate in the presence of MnO2 which then interacts with boronic ester to form the key intermediate boron-ate complex, followed by migration from boron to nitrogen to form a new C–N bond. This new finding provides mild, scalable, and
报道了MnO 2促进的N,N-二取代肼和硼酸酯之间的氧化偶联过程。首先在 MnO 2存在下氧化肼底物产生 1,1-二氮烯物种,然后与硼酸酯相互作用形成关键的中间体硼酸酯复合物,然后从硼迁移到氮形成新的 C -N 键。这一新发现提供了对三取代肼的温和、可扩展且操作简单的途径。