amination

[‚am·ə′nā·shən]

(organic chemistry)

The preparation of amines.

A process in which the amino group (=NH₂) is introduced into organic molecules.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Amination

a method of introducting the amino group NH₂ into various organic compounds. A typical example of amination is the action of alkali metal amides on heterocyclic bases. Thus, the interaction of pyridine with sodium amide at temperatures of about 200°C leads to the formation of α-aminopyridine (A. E. Chichibabin and O. A. Zeide, 1914):

C₅H₅N + NaNH₂ → C₅H₄N(NH₂) + NaH

Passing benzene vapor with ammonia through an incandescent tube results in a very low output of aniline:

C₆H₆ + NH₃ → C₆H₅NH₂ + H₂

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References in periodicals archive

Liang et al., "Chemical amination of graphene oxides and their extraordinary properties in the detection of lead ions," Nanoscale, vol.

Cytotoxicity Evaluation of Ammonia-Modified Graphene Oxide Particles in Lung Cancer Cells and Embryonic Stem Cells

Glycan derivatization includes reductive amination, Michael addition, hydrazide/alkoxy amino labeling, and (per)methylation/pertrimethylsilylation [12-14].

Combination of Microwave-Assisted Girard Derivatization with Ionic Liquid Matrix for Sensitive MALDI-TOF MS Analysis of Human Serum N-Glycans

AaAaAeA{AaAaAeA We receive 500 patients day; they are offered a medical ex- amination, their needed x-rays, and the medication they shall use; all for a total of LE 35, which is almost for free,AaAaAeA{AaAaAeAo Shehab says.

No Lost Generation

Sodium cyanoborohydride (Aldrich, Sweden), was used for reductive amination. Disposable PD-10 columns with Sephadex G-25 (GE Healthcare, UK) were used for separation and purification.

Antimicrobial Activity of a Cationic Guanidine Compound against Two Pathogenic Oral Bacteria

To design A2, both a-helical structure and C-terminal amination were considered because of its optimal amphipathic characteristics that increase its net positive charge and stability.

A novel peptide derived from Haliotis discus hannai inhibits the migration of MKN-28 gastric cancer cells through downregulation of [beta]-catenin signaling

The company specializes in a wide range of organic reaction technologies such as Amination, condensation, hydrogenation; Amidation, dehydrogenation & Mannich Reaction; Alkylation, diazotization & nitration; Bromination, esterifiction & oxidation; Catalytic hydrogenation, etherification & reduction; Chlorination & hydrogenation.

Ganesh Group Celebrates Its Silver Jubilee This Year

Amination of naphthalene sulphate with R-NH2 (R = methyl, ethyl, n-propyl, iso-propyl, n-butyl, cyclohexyl) in the presence of sodium amide was reported by Kenichi and co- workers [4].

SYNTHESIS, EVALUATION, ANTIBACTERIAL AND ANTIFUNGAL ACTIVITIES OF N, N-DIMETHYLNAPHTHYLAMINE AND ITS COMPLEXES WITH I-B AND IIB METALS

The emphasis of the research is on addressing fundamental challenges such as the use of carbon dioxide (C02) as a synthesis building block or more efficient amination reactions.

BASF and Heidelberg University extend joint catalysis research partnership

A family of new chiral C2 symmetric amido-oxazolinate ligands, bridged by three different linkers, have been synthesized via a modular Buchwald-Hartwig amination reaction.

Synthesis and characterization of chiral [C.sub.2]-symmetric bimetallic zinc complexes of amido-oxazolinates: active initiators for asymmetric copolymerization of C[O.sub.2] and cyclohexene oxide

Criteria for inclusion was as follows; patients with non infected closed mandibular angle fractures, which were displaced on clinical ex- amination and panoramic radiographs.

COMPARISON OF POST OPERATIVE COMPLICATIONS IN MANDIBULAR ANGLE FRACTURES TREATED BY SINGLE VERSUS TWO MINIPLATES