Synthesis of 2,2-Difluoro-3-hydroxy-1,4-diketones via an HFIP-Catalyzed Mukaiyama Aldol Reaction of Glyoxal Monohydrates with Difluoroenoxysilanes
Jianguo Yang, Saimei Liu, Peng Hong, Jinshan Li, Zhiming Wang, Jun Ren
Abstract
A novel efficient HFIP-catalyzed synthesis of structurally diverse 2,2-difluoro-3-hydroxy-1,4-diketone derivatives from readily available glyoxal monohydrates and difluoroenoxysilanes is described. This convenient protocol is induced by the distinctive fluorine effect of the reactants and the fluoroalcohol catalyst, which represents the first application of fluoroalcohol catalysis in a Mukaiyama aldol reaction.
Topics & Concepts
GlyoxalAldol reactionChemistryCatalysisOrganic chemistryLewis acids and basesFluorineCombinatorial chemistryReaction conditionsLewis acid catalysisFluorine in Organic ChemistryCarbohydrate Chemistry and SynthesisCarbon dioxide utilization in catalysis