Electrochemically Enabled Selenium Catalytic Synthesis of 2,1-Benzoxazoles from <i>o</i>-Nitrophenylacetylenes
作者:Lin-Wei Wang、Yu-Feng Feng、Hong-Min Lin、Hai-Tao Tang、Ying-Ming Pan
DOI:10.1021/acs.joc.1c00012
日期:2021.11.19
reported an electrochemically mediated method for the preparation of 2,1-benzoxazoles from o-nitrophenylacetylenes. Different from the traditional electrochemical reduction of nitro to nitroso, the nitro group directly underwent a cyclization reaction with the alkyne activated by selenium cation generated by the anodic oxidation of diphenyl diselenide and finally produced the desired products.
该研究报道了一种由邻硝基苯乙炔制备 2,1-苯并恶唑的电化学介导方法。与传统的硝基电化学还原为亚硝基不同,硝基直接与二苯基二硒化物阳极氧化产生的硒阳离子活化的炔烃发生环化反应,最终生成所需产物。