The vinylogous aldol reaction of O-silyl dienolates deriving from 2,2-dimethyl-[1,3]-dioxin-4-ones proceeds in moderate to excellent yields in the presence of catalytic amounts of PhCOOH under solvent-free conditions. Modest to good yields can be obtained by using silica gel or 3 A molecular sieves as heterogeneous catalysts.
Solvent-free Mukaiyama aldol reaction of O-silyl dienolates catalyzed by benzoic acid
Rosaria Villano;
2005
Abstract
The vinylogous aldol reaction of O-silyl dienolates deriving from 2,2-dimethyl-[1,3]-dioxin-4-ones proceeds in moderate to excellent yields in the presence of catalytic amounts of PhCOOH under solvent-free conditions. Modest to good yields can be obtained by using silica gel or 3 A molecular sieves as heterogeneous catalysts.File in questo prodotto:
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