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. 775-12-2, Name is Diphenylsilane, molecular formula is C12H12Si. In an article, author is Gharib, Ali,once mentioned of 775-12-2, Recommanded Product: 775-12-2.
Efficient synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11(13H)-trione derivatives was achieved by one-pot three-component condensation reaction of phthalhydrazide, dimedone, and aromatic aldehydes under solvent-free conditions. Good to excellent yields were obtained at short reaction times on the reusable silica supported Preyssler heteropolyacid catalyst.
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Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem