Reactions of Amino Groups

In addition to the reaction of amino groups with carbonyl compounds, in another useful method for the preparation of imines the reduction or condensation of nitriles with other reagents is employed (Eq. 2). Other more specialized methods [lb] are described in Section 5. 

Reactions of Amino Groups 107 Box 3-B Sorting and Analyzing Single Cells... 

Another addition reaction of amino groups is carbamoylation with sodium cyanate (Eq. 3-35). A displacement reaction by an amino group on an acid... 

Intramolecular reactions of amino group producing rings 348... 

The formation of glycosylamines from the reaction of amino groups and sugars is... 

Friednan, M. (1967). Solvent effects in reactions of amino groups in amino acids, peptides, and proteins with a, 6-unsaturated compounds. J. Amer. Chan. Soc. 89, 4709-4713. 

The reaction of amino groups with succinic anhydride has been utilized to dissociate multi-subunit proteins, to solubilize proteins, or to limit the action of trypsin to arginine residues. More recently, partial succinylation of multi-subunit proteins has been used to obtain information about the number and type of subunits present (see Klotz 1967 Klapper and Klotz 1972). 

Acetylation is mainly a reaction of amino groups, of which there are different types (primary amine, amide, hydrazine and sulphonamide), and involves the... 

Maillard reaction. The reaction of amino groups of amino acids, peptides, or proteins with the glycosidic hydroxyl group of sugars resulting in the formation of brown pigments. Also known as the Browning reaction. 

Peptides are amides formed by the reaction of amino groups with the carboxyl groups of amino acids. According to the number of amino acid units they are made up from, they are known as dipeptides, tripeptides or polypeptides. 

NITROGEN FIXATION AND AGRICULTURE Amino Acid Metabolism Overview Reactions of Amino Groups Synthesis of the Amino Acids... 

Selective reactions of amino groups in polyamino compounds (particularly those in heterocyclic polyamines) by metal-chelated or -mediated methods 01T4801. 

The reaction of amino groups with 2,4-dinitrofluorobenzene (XXXIX) is... 

Amino acids can undergo reactions characteristic of any functional group in the molecule. Two important reactions are the reaction of two cysteine molecules to form a disulfide, and the reaction of amino groups and carboxylate groups of dififerent molecules to form peptide (amide) linkages. 

The above water-elimination reaction results in formations of amidines. Acylamidinium ions can also result from dehydration of the tetrahedral intermediates during the reactions of amino groups with acyllactams. Such groups could also be present within the polymer molecules. The water that is released in these reactions hydrolyzes the acyllactams, acylamidine salts, and lactam salts to yield carboxylic acids. ... 

Reaction of amino groups of amino acids, peptides, and proteins with carbonyl groups of carbohydrates or with tyrosine-derived quinone groups encompass changes respectively called nonenzymatic and enzymatic browning reactions (57-75). Such changes may adversely affect the appearance, taste, nutritional quality, and safety of many foods. Until recently, sodium sulfite has been used to inhibit browning... 

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