Synthesis and structure of bicyclic enediynes via twofold carbenoid ring closure
作者:Burkhard König、Wolfgang Pitsch、Ina Dix、Peter G. Jones
DOI:10.1039/b101572a
日期:——
in four steps from dicarboxylic diesters. The key step of the synthesis is a twofold carbenoid ring closing procedure from acyclic precursors. Crystalstructure analyses showed that bicyclo[6.6.4]dienetetrayne is not strained. Thermal analysis revealed its low thermal reactivity. An attempt to obtain bicyclo[6.6.2]dienetetrayne structures using the same method failed.