Asymmetric michael additions via SAMP/RA
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Enders, Dieter ;Wahl, Heiner ;Papadopoulos, Kyriakos
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Article
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1995
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John Wiley and Sons
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English
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## Abstract Asymmetric Michael addition of lithiated methyl ketone SAMP hydrazones (S)โ3 to a variety of alkenylphosphonates (E)โ2 followed by oxidative cleavage of the 1,4โadducts (__S,S__)โ4 by ozonolysis afforded 2โsubstituted 4โoxophosphonates (__S__)โ5 in usually moderate to very good overall