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. 5089-22-5, Name is 1,4-Bis(benzo[d]oxazol-2-yl)naphthalene, molecular formula is C24H14N2O2. In an article, author is Li, Bryan,once mentioned of 5089-22-5, SDS of cas: 5089-22-5.
A Scaleable Synthesis of 3-Hydroxy-1,5-naphthyridine-4-carbaldehyde
A scaleable synthesis of 3-hydroxy-1,5-naphthyridine-4-carbaldehyde is described. 3-Amino-5-methoxy-4-methyl-pyridine underwent the Skraup reaction to give the corresponding 1,5-naphthyridine which, upon treatment with DMF-DMA in the presence of catalytic amount of LiOH, provided the N,N-dimethyl enamine intermediate. Oxidative cleavage, followed by removal of the methyl ether afforded the titled product.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem