𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Non-Linear Effects in Ruthenium-Catalysed Asymmetric Hydrogenation with Atropisomeric Diphosphanes

✍ Scribed by Christian Girard; Jean-Pierre Genêt; Michel Bulliard


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
372 KB
Volume
1999
Category
Article
ISSN
1434-193X

No coin nor oath required. For personal study only.

✦ Synopsis


A strong positive nonlinear effect (asymmetric amplification) hydrogenated product with 91% ee. The influence of temperature and hydrogen pressure on this effect are was found to take place during asymmetric hydrogenations using chiral atropisomeric diphosphane-ruthenium catalysts.

presented. These nonlinear effects can be explained on the basis of a hydrogenation mechanism in which diastereomeric As an example, at atmospheric pressure the use of 50% ee BINAP to prepare [(binap)Ru(Br) 2 ] give rise to a dimers as pre-catalytic species are present.


📜 SIMILAR VOLUMES