A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, COA of Formula: C20H14O2, 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 Luo, Jun，once mentioned of 18531-99-2
Synthesis and optical resolution of a series of inherently chiral calix[4]crowns with cone and partial cone conformations
A series of inherently chiral calix[4]arenes with cone and partial cone conformations and with crown ether moieties of variable size have been readily synthesized. By taking advantage of the carboxy appendage on the lower rim, these were condensed with the chiral auxiliary (S)-BINOL to form diastereomers which, in most cases, could be separated by preparative TLC, or more desirably, by column chromato’graphy on silica gel (diaster-eomeric excess > 99% based on HPLC analysis). Seven enantiopure antipodes of inherently chiral calix[4]crowns were obtained after hydrolysis. It has been found that both the size of the crown moiety and alkylation of the last phenolic hydroxy group (accompanied with or without a change in the conformation) affect the separation of the diastereomers.
Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about is helpful to your research. COA of Formula: C20H14O2
Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI