A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Computed Properties of C14H10O4, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 482-05-3, Name is [1,1′-Biphenyl]-2,2′-dicarboxylic acid, molecular formula is C14H10O4. In an article, author is Wang, Juxian,once mentioned of 482-05-3.
Ultrasound-Promoted One-Pot, Three-Component Synthesis of Spiro[indoline-3,1 ‘-pyrazolo[1,2-b]phthalazine] Derivatives
A series of 3′-aminospiro[indoline-3,1′-pyrazolo[1,2-b]phthalazine]-2,5′,10’-trione derivatives have been synthesized by a one-pot three-component reaction of isatin, malononitrile or ethyl cyanoacetate and phthalhydrazide catalyzed by piperidine under ultrasound irradiation. For comparison the reactions were carried out under both conventional and ultrasonic conditions. In general, improvement in rates and yields were observed when the reactions were carried out under sonication compared with classical conditions.
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Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem