Domino Michael/retro-Michael/Mukaiyama-aldol reactions of 1,3-bis-silyl enol ethers with 3-acyl- and 3-formylbenzopyrylium triflates - Synthesis of functionalised 2,4′-dihydroxybenzophenones
The reaction of 1,3-bis-silyl enol ethers with 3-acyl- and 3-formylbenzopyrylium triflates, which can be generated in situ from 3-acyl- and 3-formylchromones, affords a great variety of functionalised 2,4′-dihydroxybenzophenones and 4-(2-hydroxybenzoyl)sa
Appel, Bettina,Rotzoll, Sven,Kranich, Remo,Reinke, Helmut,Langer, Peter