How will you synthesise 1-naphthylamine from naphthalene?
How will you synthesise 1-naphthylamine from naphthalene?
Process for the preparation of 1-naphthylamine Abstract 1-Naphthylamine is prepared by the hydrogenation of 1-nitronophthalene which is virtually free of sulphur compounds and isomeric nitronaphthalenes, at elevated temperature and elevated pressure, in the presence of inert organic solvents miscible with water and in …
What is Naphthylamine found in?
2-Naphthylamine DNA adducts have been found in bladder and liver cells from exposed dogs (IARC 1987). 2-Naphthylamine is an aromatic amine (arylamine) that exists at room temperature as colorless crystals with a faint aromatic odor. It is soluble in hot water, alcohol, ether, and many organic solvents.
What is naphthylamine used for?
2-Naphthylamine is now used only in laboratory research. It formerly was used commercially as an intermediate in the manufacture of dyes, as an antioxidant in the rubber industry, and to produce 2-chloronaphthylamine (IARC, 1974; HSDB, 2003).
Is 2-naphthylamine soluble in water?
2-naphthylamine is a naphthylamine carrying the amino group at position 2. It has a role as a carcinogenic agent. Beta-naphthylamine appears as a white to reddish colored solid in the form of flakes. Slightly soluble in hot water and denser than water.
Is naphthylamine soluble in water?
2-Naphthylamine
| Names | |
|---|---|
| Melting point | 111 to 113 °C (232 to 235 °F; 384 to 386 K) |
| Boiling point | 306 °C (583 °F; 579 K) |
| Solubility in water | miscible in hot water |
| Vapor pressure | 1 mmHg (107° C) |
What is benzidine used for?
Benzidine-based dyes are used in the production of textiles, paints, printing inks, paper, and pharmaceuticals. They are also used as reagents and biological stains in laboratories, and have more recent uses in laser, liquid crystal displays, ink-jet printers, and electro-optical devices.
Is diphenylamine soluble in water?
The compound is a colorless solid, but commercial samples are often yellow due to oxidized impurities. Diphenylamine dissolves well in many common organic solvents, and is moderately soluble in water. It is used mainly for its antioxidant properties.
How are naphthalene diimides produced in hydrolysis?
Naphthalene diimides. Symmetrical naphthalene diimides are synthesized by the condensation reaction of primary amines and the dianhydride. Unsymmetrical derivatives, i.e. those derived from two different amines, are obtained by hydrolysis of one of the two anhydride groups prior to the condensation with the first amine.
What is the formula for naphthalen 2-amine?
N, Handbuch der gef??hrlichen G??ter The original Google Books Embedded Viewer API is no longer available. Please see https://developers.google.com/books/docs/viewer/developers_guide to update to the new version. 2-Naphthylamine is one of two isomer ic aminonaphthalenes, compounds with the formula C 10 H 7 NH 2.
How are unsymmetrical derivatives of naphthalene obtained?
Unsymmetrical derivatives, i.e. those derived from two different amines, are obtained by hydrolysis of one of the two anhydride groups prior to the condensation with the first amine. These diimides are members of a broader class of compounds called rylenes, oligomers of naphthalene with bonds between the 1 and 1′ and 8 and 8′ positions.
Which is naphthalene substituted by an amino group in position 1?
1-naphthylamine is a naphthylamine that is naphthalene substituted by an amino group at position 1. It has a role as a human xenobiotic metabolite.