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2005•Organic LettersRequires access

Asymmetric Hydrogenation of Isobutyrophenone Using a [(Diphosphine) RuCl2 (1,4-Diamine)] Catalyst

Gabriela A. Grasa, Antonio Zanotti‐Gerosa, Jonathan Medlock, William P. Hems

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Abstract

[reaction: see text] The use of three chiral 1,4-diamines in the [(diphosphine) RuCl(2) (diamine)] catalyst system is demonstrated in the hydrogenation of acetophenone. The use of a 1,4-diamine offers unique properties that allow tuning of the catalyst system. These include the first example of the use of a racemic diamine in combination with a chiral phosphine, which gives 95% ee in the hydrogenation of isobutyrophenone.

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[reaction: see text] The use of three chiral 1,4-diamines in the [(diphosphine) RuCl(2) (diamine)] catalyst system is demonstrated in the hydrogenation of acetophenone. The use of a 1,4-diamine offers unique properties that allow tuning of the catalyst system. These include the first example of the use of a racemic diamine in combination with a chiral phosphine, which gives 95% ee in the hydrogenation of isobutyrophenone.

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Available abstract

[reaction: see text] The use of three chiral 1,4-diamines in the [(diphosphine) RuCl(2) (diamine)] catalyst system is demonstrated in the hydrogenation of acetophenone. The use of a 1,4-diamine offers unique properties that allow tuning of the catalyst system. These include the first example of the use of a racemic diamine in combination with a chiral phosphine, which gives 95% ee in the hydrogenation of isobutyrophenone.

Key concepts: Diamine, Acetophenone, Catalysis, Asymmetric hydrogenation, Chemistry, Phosphine, Noyori asymmetric hydrogenation, Organic chemistry

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