The Journal of Organic Chemistry

Asymmetric hydrogenation of prochiral olefins catalyzed by rhodium complexes with chiral pyrrolidinodiphosphines. Crucial factors for the effective asymmetric …

I Ojima, T Kogure, N Yoda

Index: Ojima, Iwao; Kogure, Tetsuo; Yoda, Noriko Journal of Organic Chemistry, 1980 , vol. 45, # 23 p. 4728 - 4739

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Citation Number: 186

Abstract

Effects of Hydrogen Pressure on the Stereoselectivity. Although homogeneous asymmetric hydrogenation of dehydroamino acids has been extensively studied,'little attention has been focused on the pressure dependency of stereoselectivity in these reactions. 2a Accordingly, we carried out the asymmetric hydrogenation of (2)-a-benzamidocinnamic acid (I),(2)-a- (acetamid0) cinnamic acid (2), methyl (2)-a-(acetamidolcinnamate (3), a-(acetamido) ...

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