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I. Chiral Squaramide Catalysts for Lewis Acid Activation in Asymmetric Catalysis II. Catalytic, Stereoselective Difluorination Reactions
(2016-12-13)
In Chapter 1, we report the observation that chiral squaramide hydrogen-bond (H-bond) donor catalysts act cooperatively with trialkylsilyl trifluoromethanesulfonates (silyl triflates) to promote enantioselective (4+3) ...