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. 286961-14-6, Name is tert-Butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate, molecular formula is C16H28BNO4. In an article, author is El-Sayed, Hassan A.,once mentioned of 286961-14-6, HPLC of Formula: C16H28BNO4.
A facile synthesis of highly fluorescent pyrido[2,3-d]pyrimidines and 1,8-naphthyridines via oxazine transformation and enaminic addition reactions
The synthesis and fluorescence properties of highly substituted bicyclic pryridine derivatives are described. 2-Substituted-4-oxo-pyrido[2,3-d]pyrimidines 2-8 resulted from the acylation reaction of alpha-aminonicotinonitrile 1 with aroyl chlorides, diethyl malonate, morpholine-4-carboxylate, acetic anhydride or formic acid under solvent-free conditions. [4+2] Cyclocondensation and cycloaddition reactions of compound type 1 with formamide and ammonium thiocyanate tolerated the fused pyrimidines 9 and 11, respectively. Finally, the Friedlander-like reaction was applied for the synthesis of 1,8-naphthyridines 12-15 via reaction of compound 1 with cyclohexanone, dimedone, acetyl acetone and benzyl methyl ketone, respectively, under AlCl3 catalysis. The fluorescence spectroscopic data of compounds 1-4, 6-8, 11, 12, 14 and 15 measured and significant results were observed.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem