Frontier-controlled pericyclic reactions of cyclooctatetraene with cyclopentadienones. First example of exo [4 + 6].pi. cycloadduct by effective secondary orbital control and its molecular structure
Novel [4+6]π cycloadduct from frontier-controlled pericyclic reaction of 2,5-dimethoxycarbonyl-3,4-diphenylcyclopentadienone with cyclooctatetraene
作者:Masami Yasuda、Kazunobu Harano、Ken Kanematsu
DOI:10.1016/s0040-4039(01)85576-3
日期:1980.1
4-diphenylcyclopentadienone with an excess of cyclooctatetraene gives the novel exo[4+6]π cycloadduct together with the endo[2+4]π and bis-Diels-Alder cycloadducts. The CNDO/2 MO calculation indicates that HOMO(COT)-LUMO(cyclopentadienone) interaction will be more important than the other.