The Rh2(OAc)4-catalyzed reactions of 3-trifluoromethyl-4-diazopyrazolinones with aromatic compounds
作者:Huafang Fan、Zhenhua Zhang、Xinjin Li、Jingwei Zhao、Jinming Gao、Shizheng Zhu
DOI:10.1016/j.tet.2012.12.077
日期:2013.2
The C H insertion reactions of 3-trifluoromethy1-4-diazopyrazolinones 1 with benzene and its derivatives catalyzed by Rh-2(OAc)(4) were studied. It was found that the Csp(2)-H insertion products were obtained in good yields when anisole or xylene etc. was used, while the aromatic compounds with electronic-withdrawing groups, such as fluorobenzene, chlorobenzene, and benzonitrile, did not react with the diazo compounds 1. (C) 2013 Elsevier Ltd. All rights reserved.