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The sulfonic acid derivatives of 1-naphthylamine are used for the preparation of azo dye.These compounds possess the important property of dyeing unmordanted cotton.. An important derivative is naphthionic acid (1-aminonaphthalene-4-sulfonic acid), which is produced by heating 1-naphthylamine and sulfuric acid to 170–180 °C in the presence of crystallized oxalic acid.
Naphthylamine or aminonaphthalene can refer to either of two isomeric chemical compounds: 1-Naphthylamine (1-aminonaphthalene) 2-Naphthylamine (2-aminonaphthalene)
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N,N-Dimethyl-1-naphthylamine is an aromatic amine. It is formally derived from 1-naphthylamine by replacing the hydrogen atoms on the amino group with methyl groups . N , N -Dimethyl-1-naphthylamine is used in the nitrate reductase test to form a precipitate of a red azo dye by reacting with a nitrite - sulfanilic acid complex.
1-Nitronaphthalene is an organic compound with the formula C 10 H 7 NO 2. It is one of two isomers of nitronaphthalene. A pale yellow, sublimable solid, 1-nitronaphthalene is the main product of the direct nitration of naphthalene. It is an intermediate in the production of naphthylamine, a precursor to dyes. [1]
The enamine eliminates sodium bisulfite with formation of naphthylamine 6. It is important to stress that this is a reversible reaction. The reaction is summarized as follows: The Bucherer carbazole synthesis is a related reaction.
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2-Naphthylamine; Quinaldine This page was last edited on 28 August 2022, at 17:16 ...