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Amine. In chemistry, amines (/ ə ˈ m iː n, ˈ æ m iː n /, [1] [2] UK also / ˈ eɪ m iː n / [3]) are compounds and functional groups that contain a basic nitrogen atom with a lone pair.Formally, amines are derivatives of ammonia (NH 3), wherein one or more hydrogen atoms have been replaced by a substituent such as an alkyl or aryl group [4] (these may respectively be called alkylamines ...
Because primary and secondary amines react with aldehydes and ketones, the most common variety of these aminocarbonyl compounds feature tertiary amines. Such compounds are produced by amination of α-haloketones and α-haloaldehydes. [1] Examples include cathinones, methadone, molindone, pimeclone, ferruginine, and tropinone.
In organic chemistry, the Mannich reaction is a three-component organic reaction that involves the amino alkylation of an acidic proton next to a carbonyl (C=O) functional group by formaldehyde (H−CHO) and a primary or secondary amine (−NH 2) or ammonia (NH 3). [1] The final product is a β-amino-carbonyl compound also known as a Mannich base.
The structure of a typical NONOate group. In chemistry, a NONOate is a compound having the chemical formula R 1 R 2 N−(NO −)−N=O, where R 1 and R 2 are alkyl groups. One example for this is 1,1-diethyl-2-hydroxy-2-nitrosohydrazine, or diethylamine dinitric oxide.
In chemistry, an amine oxide, also known as an amine N-oxide or simply N-oxide, is a chemical compound that has the chemical formula R 3 N + −O −. It contains a nitrogen-oxygen coordinate covalent bond with three additional hydrogen and/or substituent-groups attached to nitrogen. Sometimes it is written as R 3 N→O or, alternatively, [1 ...
The mechanism of response is the same for both, only the stimulus varies. The general form of the polymer is a backbone with functional "pendant groups" that hang off of it. When these functional groups become ionized in certain pH levels, they acquire a charge (+/-). Repulsions between like charges cause the polymers to change shape. [1] [2]
The chromophore, with an amine functional group, is attached to the triazine, displacing one chloride: [citation needed] (NCCl) 3 + dye-NH 2 → N 3 C 3 Cl 2 (NHdye) + HCl. The resulting dichlorotriazine can then be affixed to the cellulose fibre by displacement of one of the two chloride groups: [citation needed]
The −OH group is replaced by an −NH 2 group and the =O group is replaced by =N R, giving amidines the general structure R n E(=NR)NR 2. [ 10 ] [ 11 ] [ 12 ] When the parent oxoacid is a carboxylic acid , the resulting amidine is a carboxamidine or carboximidamide ( IUPAC name).