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Aniline (from Portuguese anil 'indigo shrub', and -ine indicating a derived substance) [6] is an organic compound with the formula C 6 H 5 NH 2. Consisting of a phenyl group ( −C 6 H 5 ) attached to an amino group ( −NH 2 ), aniline is the simplest aromatic amine .
The NH 2 group attached to the benzene ring means that there is a lone pair of electrons that can enter into conjugation with the benzene ring resulting in delocalization in the aniline. Aniline absorbs in the K (220 - 250 nm) and the B (250 - 290 nm) bands exhibited by benzenoid compounds.
p-Anisidine condenses readily with aldehydes and ketones to form Schiff bases, which absorb at 350 nm.This colorimetric reaction is used to test for the presence of oxidation products in fats and oils, an official method for detecting them by the American Oil Chemists' Society. [9]
p-Phenylenediamine (PPD) is an organic compound with the formula C 6 H 4 (NH 2) 2.This derivative of aniline is a white solid, but samples can darken due to air oxidation. [1] It is mainly used as a component of engineering polymers and composites like kevlar.
DMA was first reported in 1850 by the German chemist A. W. Hofmann, who prepared it by heating aniline and iodomethane: [3] [4] C 6 H 5 NH 2 + 2 CH 3 I → C 6 H 5 N(CH 3) 2 + 2 HI. DMA is produced industrially by alkylation of aniline with methanol in the presence of an acid catalyst: [5] C 6 H 5 NH 2 + 2 CH 3 OH → C 6 H 5 N(CH 3) 2 + 2 H 2 O
Preferred IUPAC name. 3-Methoxyaniline [1] Other names ... 123.155 g·mol −1 Appearance ... It is one of three isomers of the methoxy-containing aniline derivative.
Preferred IUPAC name. 2-Methoxyaniline [1] Other names ... 1400 mg/kg (mouse, oral) 870 mg/kg ... It is one of three isomers of the methoxy-containing aniline derivative.
Names Preferred IUPAC name. Phenylphosphane. ... C 0.05 ppm (0.25 mg/m 3) [1] IDLH ... It is the phosphorus analog of aniline.