Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 91-76-9, Name is 2,4-Diamino-6-phenyl-1,3,5-triazine, molecular formula is C9H9N5. In an article, author is Feng, Bin-Bin,once mentioned of 91-76-9, COA of Formula: C9H9N5.
Green Synthesis of Spiro[indoline-3,4 ‘-pyrazolo[3,4-b][1,6]naphthyridine]-2,5 ‘(1 ‘ H)-diones Catalyzed by TsOH in Ionic Liquids
A three-component reaction of isatin, 3-methyl-1-phenyl-1H-pyrazol-5-amine, and piperidine-2,4-dione was treated in ionic liquids catalyzed by TsOH and provided an efficient and green method for the synthesis of spiro[indoline-3,4’-pyrazolo[3,4-b][1,6]naphthyridine]-2,5′(1’H)-dione derivatives in high yields.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem