α,β-Alkynyl ketoesters were introduced to the enantioselective Henry reaction(nitroaldol condensation)with nitromethane catalyzed by tartaric acid derived chiral iminophosphoranes.As such,a variety of optically act...α,β-Alkynyl ketoesters were introduced to the enantioselective Henry reaction(nitroaldol condensation)with nitromethane catalyzed by tartaric acid derived chiral iminophosphoranes.As such,a variety of optically activeβ-nitro-substituted tertiary alcohols bearing alkyne moieties were obtained in good to excellent yields(42%–99%)and moderate to good level of enantiomeric excess(up to 87%ee).展开更多
基金supported by grants from National Key Program(No.2016YFA0200302,Study on application and preparation of aroma nanocomposites)National Natural Science Foundation of China(NSFC,No.21472213)Croucher Foundation(Hong Kong)in the form of a CAS-Croucher Foundation Joint Laboratory Grant
文摘α,β-Alkynyl ketoesters were introduced to the enantioselective Henry reaction(nitroaldol condensation)with nitromethane catalyzed by tartaric acid derived chiral iminophosphoranes.As such,a variety of optically activeβ-nitro-substituted tertiary alcohols bearing alkyne moieties were obtained in good to excellent yields(42%–99%)and moderate to good level of enantiomeric excess(up to 87%ee).
