Tetrahedron letters

Ruthenium complexes of phosphine–aminophosphine ligands

NW Boaz, JA Ponasik, SE Large

Index: Boaz, Neil W.; Ponasik Jr., James A.; Large, Shannon E. Tetrahedron Letters, 2006 , vol. 47, # 24 p. 4033 - 4035

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Citation Number: 24

Abstract

Ruthenium complexes of phosphinoferrocenylaminophosphine ligands (BoPhoz™ ligands) have been prepared by combining the ligands with tris (triphenylphosphine) ruthenium dichloride and precipitating the complexes. The optimal species exhibit high enantioselectivities for the asymmetric hydrogenation of functionalized ketones, particularly β-ketoesters.

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