A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Product Details of 18531-99-2, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 18531-99-2, Name is (S)-[1,1′-Binaphthalene]-2,2′-diol, molecular formula is C20H14O2. In a Article, authors is Wu, Kuo-Hui，once mentioned of 18531-99-2
Aryl addition reactions of ArTi(O-i-Pr)3 to aromatic, heteroaromatic, or alpha,beta-unsaturated ketones are described, producing tertiary alcohols in good to excellent enantioselectivities of up to 97% ee. The structure of the dititanium complex [(i-PrO)2Ti{mu-(S)-BINOLate} (mu-O-i-Pr)TiPh(O-i-Pr)2] [(S)-4] that simultaneously bears a chiral directing ligand and a nucleophile is reported. Complex (S)-4 possesses a pocket structure and has been illustrated as the key active species for addition reactions of both aldehydes and ketones. Mechanistic and stereochemical insights concerning addition reactions of organometallic reagents to organic carbonyls are rationalized based on the pocket structure and pocket size of (S)-4. Copyright
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI