A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Recommanded Product: 112068-01-6, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 112068-01-6, Name is (S)-Diphenyl(pyrrolidin-2-yl)methanol, molecular formula is C17H19NO. In a Article, authors is Peper, Viola，once mentioned of 112068-01-6
New catalysts 4-10 for the asymmetric reduction of the two model ketones 13 and 14 by borane are described. These catalysts are easily prepared by reaction of the corresponding beta-amino alcohols with phenylphosphonic dichloride or alternatively by oxidation of the chiral 1,3,2-oxazaphospholidines. Enantiomeric excesses of 96% in the case of the omega-chloroacetophenone have been obtained using only 1 mol% of the optimum catalyst.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI