A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 58743-75-2, Name is 4′-Ethyl-[1,1′-biphenyl]-4-carbonitrile, molecular formula is C15H13N. In an article, author is Ghozlan, Said A. S.,once mentioned of 58743-75-2, COA of Formula: https://www.ambeed.com/products/58743-75-2.html.
Azaenamine incorporating pyrazole-4-carboxylate is prepared and allowed to react with alpha,beta-substituted nitriles. A new reactivity pattern was observed leading to the formation of substituted pyrazolo[4′,3′-5,61 pyrimido[2,1-a]phthalazine-9-carbonitriles, which can be considered as aromatic aza-steroid analogues. (C) 2015 Elsevier Ltd. All rights reserved.
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Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem