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Synlett 1992; 1992(4): 299-300
DOI: 10.1055/s-1992-21346
DOI: 10.1055/s-1992-21346
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Synthesis of α,β-Unsaturated Sulphoximines via Wadsworth-Emmons Reactions of S-[(Diethylphosphonyl)methyl]-S-phenyl-N-tosylsulphoximine Generated In Situ
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Publication History
Publication Date:
08 March 2002 (online)
Sequential reaction of S-methyl-S-phenyl-N-tosylsulphoximine (1) with butyllithium, potassium tert-butoxide and diethyl chlorophosphate, followed by the addition of aldehydes gives α,β-unsaturated sulphoximines 2 in good to excellent yield, and with high E-selectivity.