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Pushing the Nazarov envelope: An electrophilic complex (1; see scheme; EDG=electron‐donating group, EWG=electron‐withdrawing group, binap=2,2‐bis(diphenylphosphanyl)‐1,1‐binaphthyl) exhibits unusual catalytic activity in the polarized Nazarov cyclization reaction. Aryl vinyl ketones that show poor reactivity with well‐known catalysts can be readily cyclized with 1/AgSbF6 (1:1) under mild reaction...
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