Asymmetric Synthesis of α‐Substituted β‐Amino Sulfones by Aza‐Michael Addition to Alkenyl Sulfones and Subsequent α‐Alkylation

作者: Dieter Enders , Stephan Frank Müller , Gerhard Raabe , Jan Runsink

DOI: 10.1002/(SICI)1099-0690(200003)2000:6<879::AID-EJOC879>3.0.CO;2-E

关键词: ElectrophileEnantiopure drugBenzyl bromideStereochemistryAddition reactionChemistryBond cleavageEnantioselective synthesisRacemizationMichael reaction

摘要: … -alkenyl sulfones in the presence of a catalytic amount of ytterbium trifluoromethanesulfonate [Yb(OTf)3] yields β-hydrazino sulfones … N-protected β-amino sulfones with moderate to high …

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