QuestionOrganic / dienone-phenol rearrangement, base-induced ring expansion
The major products [X] and [Y] formed in the following reactions are :
- (a) [X] = dibenzazepinone phenol, OH para to the biaryl bond; [Y] = fully unsaturated tropone fused to N-methylphenanthridinone
- (b) [X] = dibenzazepinone phenol, OH para to the biaryl bond; [Y] = dihydrotropone (CH₂ in the seven-ring) fused to N-methylphenanthridinone
- (c) [X] = dibenzazepinone phenol, OH para to the CH₂ (meta to the biaryl bond); [Y] = dihydrotropone (CH₂ in the seven-ring) fused to N-methylphenanthridinone
- (d) [X] = dibenzazepinone phenol, OH para to the CH₂ (meta to the biaryl bond); [Y] = fully unsaturated tropone fused to N-methylphenanthridinone
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