endo-6-(Hydroxymethyl)bicyclo[3.1.0]hept-3-en-2-one esters and the photochemical challenge: [2+2] cycloaddition versus skeletal rearrangement
作者:Matthieu Le Liepvre、Jean Ollivier、David J. Aitken
DOI:10.1016/j.tetasy.2010.05.043
日期:2010.6
The photochemical reactivity of enantiomerically pure bicyclo[3.1.0]hept-3-en-2-ones has been examined to determine whether a [2+2] cycloaddition with an alkene could be achieved without interference from a photochemically induced skeletal rearrangement. The formation of a tricyclo[5.2.0.02,5]nonan-6-one was indeed the major pathway, exclusively providing the cis-anti-cis isomer. However, the formation