Asymmetric synthesis using Ξ±,Ξ²-unsaturat
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Gen-ichi Tsuchihashi; Shuichi Mitamura; Katsuyuki Ogura
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Article
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1976
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Elsevier Science
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French
β 245 KB
We previously reported that the Michael addltlon of dlethyl malonate to (+)-(R)-tm-B-styryl p-tolyl sulfoxide [(+)-I] In a usual condltlon (EtONa/ EtOH) resulted In the dominant formation of IIIa wrth respect to its diastereomer IIIb.