Enhancing the enantioselectivity of novel homogeneous organometallic hydrogenation catalysts.

By designing well-defined, single-site asymmetric organometallic complexes anchored to a concave siliceous support (see picture) high ee values may be obtained in heterogeneous catalytic hydrogenations. O red, Si orange, Rh yellow, C grey, N blue, F green, B pink, H white.

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