Electrochemical synthesis of tetrazoles <i>via</i> metal- and oxidant-free [3 + 2] cycloaddition of azides with hydrazones
作者:Zenghui Ye、Feng Wang、Yong Li、Fengzhi Zhang
DOI:10.1039/c8gc02889c
日期:——
An unprecedented electrochemical [3 + 2] cycloaddition reaction for the synthesis of valuable tetrazoles was developed. Readily available azides and hydrazones were used as the starting materials under simple metal- and oxidant-free reaction conditions. Various functional groups are compatible with this green protocol which can be carried out on a gram-scale or in one pot easily.
Visible-light-promoted organic dye catalyzed perfluoroalkylation of hydrazones under mild conditions
作者:Ming-Dong Zhou、Zhen Peng、Lei Li、He Wang
DOI:10.1016/j.tetlet.2019.151124
日期:2019.10
A general and facile visible-light-promoted organic dye catalyzed perfluoroalkylation of hydrazones has been developed using inexpensive and non-toxic Eosin Y as the photoredox catalyst under mild conditions. This reaction protocol exhibits synthetic simplicity, broad scope of substrates, and excellent functional group compatibility. A gram scale synthesis can be also facilitated with a satisfactory