BINAP: rhodium–diolefin complexes in asymmetric hydrogenation

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• 作者：Angelika Preetz ; Hans-Joachim Drexler ; Stefan Schulz ; Detlef Heller
• 刊名：Tetrahedron: Asymmetry
• 出版年：2010
• 出版时间：17 May 2010
• 年：2010
• 卷：21
• 期：9-10
• 页码：1226-1231
• 全文大小：1028 K

文摘

The complexes [Rh((S)-BINAP)(COD)]BF₄ 1, [Rh((S)-BINAP)(NBD)]BF₄ 2, [Rh((R)-BINAP)(COD)]OTf 3, [Rh((R)-BINAP)(NBD)]OTf 4, and [Rh((R)-BINAP)(COD)]BArF 5 were synthesized, and 1–4 were analyzed by single crystal X-ray crystallography. The transformation of these precatalysts into hydrogenation-active species was investigated as well as the hydrogenation of prochiral olefins. In particular, this series of transformations was investigated with regard to solvent and counterions.