Rhodium(III)-catalyzed synthesis of indoles from 1-alkylidene-2-arylhydrazines and alkynes via C–H and N–N bond cleavages
作者:Takanori Matsuda、Yuki Tomaru
DOI:10.1016/j.tetlet.2014.04.016
日期:2014.5
1-Alkylidene-2-arylhydrazines undergo annulative coupling with internal alkynes in the presence of a rhodium(III) catalyst and a copper(II) salt. The reaction proceeds through cleavage of the C–H and N–N bonds of hydrazines to afford 1,2,3-trisubstituted indole derivatives.
1-炔基-2-芳基肼在铑(III)催化剂和铜(II)盐存在下与内部炔烃进行环状偶联。通过肼的CH键和NH键的裂解进行反应,得到1,2,3-三取代的吲哚衍生物。