Macrocycle Ring Expansion by Double Stevens Rearrangement
作者:Keisha K. Ellis-Holder、Brian P. Peppers、Andrei Yu. Kovalevsky、Steven T. Diver
DOI:10.1021/ol060657a
日期:2006.6.1
New benzimidazolidinone cyclophanes were synthesized through a double Stevens rearrangement employed as a ringexpansion technique. Para-substituted heterophanes underwent efficient rearrangement. Meta-substituted heterophanes were also prepared. Structure analyses of the new cyclophanes are also provided. [reaction: see text]