First Reactions of 2,2′-Bisindolyls with Electrophilic Azo Compounds and Diethyl Mesoxalate
作者:Ulf Pindur、Mung-Hwa Kim
DOI:10.1002/ardp.19923250609
日期:——
Conformations and some electronic properties of the 2,2′‐bisindolyls 6 were calculated for the prediction of probable Diels‐Alder reactivity, in analogy to previous work on 2‐vinylindoles. First reactions with dienophiles revealed that compounds 6 did not participate in [4 + 2]cycloadditions but rather underwent simple electrophilic substitutions at the enamine function with, above all, some heterodienophiles