An unprecedented stereoselective [2+2] cycloreversion of cyclobutanones

作者:Ji Xiufang; Wang Quanrui*; Goeke Andreas
来源:Chemical Communications, 2010, 46(46): 8845-8847.
DOI:10.1039/c0cc02694h

摘要

A one-pot metathetic ring opening of substituted bicyclo[3.2.0]-heptenones to linear polyene ketones is described. The reaction proceeds with conservation of the endocyclic (Z)-double bond. Exo-substituted vinylcyclobutanones result in (4Z,6E)-configured trienones, while endo-substituted phenyl derivatives generate (4Z,6Z)-configured dienones.