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

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journal contribution
posted on 14.04.2005 by Gabriela A. Grasa, Antonio Zanotti-Gerosa, Jonathan A. Medlock, William P. Hems
The use of three chiral 1,4-diamines in the [(diphosphine) RuCl2 (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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