Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 573-17-1, Name is 9-Bromophenanthrene, molecular formula is C14H9Br, belongs to naphthyridines compound, is a common compound. In a patnet, author is Ibrahim, Magdy A., once mentioned the new application about 573-17-1, Recommanded Product: 573-17-1.
Chemical behavior of 4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromene-6-carboxaldehyde towards carbon nucleophilic reagents
The chemical behavior of 6-formylkhellin (1) was investigated toward a variety of carbon nucleophiles. Treatment of aldehyde 1 with cyanoacetamide, N-benzylcyanoacetamide produced pyridine-3-carboxamides 3 and 4. Treatment of carboxaldehyde 1 with malononitrile dimer and 1H-benzimidazol-2-ylacetonitrile gave 1,6-naphthyridine 5 and pyrido[1,2-a]benzimidazole 6, respectively. Some novel pyrazolo[3,4-b]pyridine 7, pyrido[2,3-d]pyrimidines 8 and 9 were synthesized from the ring opening ring closure reactions of carboxaldehyde 1 with certain heterocyclic enamines. In addition, reaction of carboxaldehyde 1 with certain cyclic enols produced a variety of products. Treatment of carboxaldehyde 1 with 1,3-cyclohexanediones gave xanthene-1,8-diones 19 and 20. Reaction of carboxaldehyde 1 with 5-methyl-2,4-dihydro-3H-pyrazol-3-one proceeds in 1:2 M ratio producing pyrazolo [4 ‘,3 ‘:5,6]pyrano[2,3-c]pyrazole derivative 22. Carboxaldehyde 1 reacted with certain heterocyclic compounds containing active methylene groups to give the corresponding condensation products 22-27. The synthesized compounds were screened in vitro for their antimicrobial activity and showed high to moderate activities against the tested microorganisms.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem