ABSTRACT
Abstract The extensive work reported concerning the cinchona alkaloid modified platinum catalyzed hydrogenation of a ketoesters and acids has provided us with the information needed to defme what would be required for an effective chiral modifier other than the cinchona alkaloids and the chiral synthetic materials related to them. Simply put, these criteria are:
The presence of at least a binuclear aromatic ring for adsorption of the modifier onto the metal surface.
