As the potential for ruthenium-catalyzed reactions other than hydrogenation increases, the importance of asymmetric complexes grows. With the aid of molecular modeling, four classes of novel ruthenium(II) complexes with chiral bidentate cyclopentadienylphosphine ligands were designed and tested for asymmetric induction in a ruthenium-catalyzed reconstructive addition (see figure).
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Trost et al. (1999) studied this question.