Intramolecular Stetter cyclisation of Morita–Baylis–Hillman adducts: a versatile approach towards bicycloenediones
作者:Pierre Wasnaire、Thierry de Merode、István E. Markó
DOI:10.1039/b710492h
日期:——
Bicyclic enediones of various sizes can be efficiently assembled by intramolecular Stetter cyclisation of readily available MoritaâBaylisâHillman adducts.
Reductive cyclisation of Morita–Baylis–Hillman adducts. A simple approach towards substituted hydrindanones and decalones
作者:Pierre Wasnaire、Marianne Wiaux、Roland Touillaux、István E. Markó
DOI:10.1016/j.tetlet.2005.11.143
日期:2006.2
A connective synthesis of substituted hydrindanones and decalones can be accomplished based upon a novel approach involving two key-steps: a Morita–Baylis–Hillman condensation and an intramolecular reductive cyclisation using lithium in ammonia. Decalones, akin to the middle core of the clerodane family of natural products and bearing a quaternary carbon centre, can be readily assembled via this protocol