Cyclohexadienones: stereospecific photochemical rearrangements of o-quinol acetates
Abstract
The photochemically-induced rearrangement of some cyclohexa-2,4-dienones to bicyclo[3,1,0]hex-3-en-2-ones occurs by a general stereospecific ring opening to a keten, which is followed by a stereospecific thermal cyclisation.