A practical synthetic approach to chiral α-aryl substituted ethylphosphonates

…, JC Henry, D Lavergne, V Ratovelomanana-Vidal…

Index: Goulioukina, Natalia S.; Dolgina, Tat'yana M.; Beletskaya, Irina P.; Henry, Jean-Christophe; Lavergne, Damien; Ratovelomanana-Vidal, Virginie; Genet, Jean-Pierre Tetrahedron Asymmetry, 2001 , vol. 12, # 2 p. 319 - 327

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Citation Number: 74

Abstract

A convenient general method is reported for the synthesis of α-aryl substituted ethylphosphonic acids and esters by hydrogenation of α-aryl substituted ethenylphosphonic acids and esters. Racemic α-arylethylphosphonic acids and esters were prepared in 70– 88% yield under palladium-assisted transfer hydrogenation conditions using ammonium formate. Asymmetric hydrogenation of α-arylethenylphosphonic acids using chiral Ru (II) ...