Amines amino

The industrial process for preparing the reagent usually permits a little hydrolysis to occur, and the product may contain a little free calcium hydroxide or basic chloride. It cannot therefore be employed for drying acids or acidic liquids. Calcium chloride combines with alcohols, phenols, amines, amino-acids, amides, ketones, and some aldehydes and esters, and thus cannot be used with these classes of compounds. 

Primary and secondary amines, amino acids and phenols react In the case of long-wavelength UV light (A = 365 nm) the DANS amides fluoresce yellow-green, while amines that have reacted at a phenolic OH group have an intense yellow to yellow-orange fluorescence The detection hmit for DANS amides is ca 10 mol [86]... 

Amines, Amino acids, peptides, e g tryptophan, tryptamine, peptides with terminal tryptophan groups... 

New polar (Cyelie) Amines Amino aleohols (a-Hydroxyl/halogen) aeids... 

The epoxy-acrylic resin referred to above is a graft copolymer prepared by the polymerisation of acrylic monomers in the presence of the epoxy resin in such a way that grafting of the acrylic onto the epoxy takes place. Water dispersibility is achieved by neutralising carboxyl groups in the acrylic polymer chain with ammonia or amine. Amino or phenolic resins are used as crosslinkers. Alternatively, solvent-borne epoxy-amino or epoxy-phenolic lacquers can be used. 

A. Attack by NH2, NHR, or NR2 at an Alkyl Carbon 10-44 Alkylation Of Amines Amino-de-halogenation (alkyl)... 

This reaction, similar in scope and mechanism to 10-55, can be carried out with ammonia or primary or secondary amines. Amino acids can be N-acylated using... 

Amines, amino acids, amides [1, 2] e.g. chloramphenicol, creatine, adenine, guanine histidine, phenylalanine, sphingosine... 

Aromatic amines, amino phenols [1] e.g. aromatic o-diamines [2]... 

Dansyl chloride is the most widely used of the derivatizing reagents. It forms derivatives with primary and secondary amines readily, less rapidly with phenols and imidazoles, and very slowly with alcohols. The reaction medium is usually an aqueous-organic sixture (e.g., 1 1 acetone-water) adjusted to a pH of 9.5-10. Dansyl chloride has two major application areas. It is used to determine small amounts of amines, amino acids and phenols, as... 

For fast reactions (i.e., < 1 min.), open tubular reactors are commonly used. They simply consist of a mixing device and a coiled stainless steel or Teflon capillary tube of narrow bore enclosed in a thermostat. The length of the capillary tube and the flow rate through it control the reaction time. Reagents such as fluorescamine and o-phthalaldehyde are frequently used in this type of system to determine primary amines, amino acids, indoles, hydrazines, etc., in biological and environmental samples. 

New polar (Cyclic) Amines Amino alcohols (a-Hydroxyl/halogen) acids... 

NMR can be a powerful tool for determination of enantiomeric excess or absolute configuration of the optically active compounds, however, these processes require the use of some auxiliaries, for example, chiral lanthanide shift reagents or chiral derivatising agent. In many cases, the starting point for determination of enantiopurity of amines, amino acids or diols is the formation of chiral imines. 

Berning, D.E. et al. (1999) Chemical and biomedical motifs of the reactions of hydroxymethylphosphines with amines, amino acids and model peptide./. Am. Chem. Soc. 121(8), 1658-1864. 

This seventh edition includes discussions of neurotransmitters ranging from acetylcholine through other amines, amino acids, purines, peptides, steroids and lipids Whereas in most cases their metabolism and receptor interactions are known, much current research involves questions of identification of effector pathways, their regulation and control. 

Amines, amino acids, peptides 2,4-dinitrophenyl hydrazone PRE-CD with +1.10 217... 

An easily accessible DA CSP derived from L-A-(2-naphthyl)valine (80) was used to separate appropriately derivatized amines, amino alcohols and thiols, derivatization consisting of N-, O- and 5-acylation with 3,5-dinitrobenzoyl chloride or 3,5-dinitrophenyl... 

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