Silver-Catalyzed Tandem C≡C Bond Hydroazidation/Radical Addition/Cyclization of Biphenyl Acetylene: One-Pot Synthesis of 6-Methyl Sulfonylated Phenanthridines
作者:Jiawei Tang、Paramasivam Sivaguru、Yongquan Ning、Giuseppe Zanoni、Xihe Bi
DOI:10.1021/acs.orglett.7b01771
日期:2017.8.4
silver-catalyzed tandem carbon–carbon triple bond hydroazidation, radical addition, and cyclization of biphenyl acetylene is described under mild conditions, leading to the formation of 6-methyl sulfonylated phenanthridines in good yields. In this novel cascade reaction, most of the atoms are incorporated into the product without cleavage of the C≡C bond. Mechanistic studies suggest the reaction should proceed