Intermolecular additions of cyclobutanone derived radicals. A convergent, highly efficient access to polycyclic cyclobutane containing structures
摘要:
alpha-Xanthyl cyclobutanones undergo intermolecular radical additions to olefins bearing various functional groups. Adducts containing a phosphonate can be made to cyclise by an internal Wittig Horner-Emmons reaction to give cyclohexene and cycloheptene rings fused to the cyclobutane. (C) 2003 Elsevier Ltd. All rights reserved.
Intermolecular additions of cyclobutanone derived radicals. A convergent, highly efficient access to polycyclic cyclobutane containing structures
摘要:
alpha-Xanthyl cyclobutanones undergo intermolecular radical additions to olefins bearing various functional groups. Adducts containing a phosphonate can be made to cyclise by an internal Wittig Horner-Emmons reaction to give cyclohexene and cycloheptene rings fused to the cyclobutane. (C) 2003 Elsevier Ltd. All rights reserved.