High temperature radical cyclization anomalies in the tandem enediyne-bis-radical cyclization
作者:Janet Wisniewski Grissom、Trevor L. Calkins、Dahai Huang、Heidi McMillen
DOI:10.1016/s0040-4020(01)85004-3
日期:1994.4
shown that the thermolysis of aromaticenediynes containing radical accepting tethers will undergo tandem enediyne-radical cyclizations. Herein will be reported several examples of the tandem enediyne-bis-radical cyclization where non-radical accepting tethers will undergo cyclizations to aromatic rings to result in cyclization products. Most of the unusual products result from 1,5-hydrogen abstraction