4753-69-9Relevant articles and documents
Meta-stable enamines: Synthesis of simple enamines via catalytic isomerization of allylic amine substrates and their polymerization behavior [10]
Novak,Cafmeyer
, p. 11083 - 11084 (2001)
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Kinetics and mechanism of the oxidation of some α-amino acids by butyltriphenylphosphonium dichromate
Panday, Dinesh,Dilsha,Kothari, Seema
experimental part, p. 816 - 821 (2010/07/13)
The oxidation of a series of nine α-amino acids by butyltriphenylphosphonium dichromate (BTPPD) in glacial acetic acid in the presence of toluene β-sulphonic acid (TsOH), leads to the formation of corresponding aldimines. The reactions are of first order with respect to BTPPD whereas the second order dependence is observed with respect to each the amino acid and hydrogen ion. The oxidation of perdeuterioglycine showed the absence of a kinetic isotope effect (kH/kD = 1.01 at 308 K). The reactions showed an excellent correlation with Taft's σ* substituent constants, the reaction constant being negative. The oxidation of alanine was studied in nineteen different organic solvents. The solvent effect was analyzed using Kamlet's and Swain's multiparametric equations. The analyses of solvent effect indicated the importance of the cation-solvating power of the solvent. Suitable mechanisms for the oxidation process are postulated.
SYNTHESE D'IMINES LINEAIRES NON-STABILISEES PAR REACTIONS GAZ-SOLIDE SOUS VIDE(1).
Guillemin, Jean-Claude,Denis, Jean-Marc
, p. 4431 - 4446 (2007/10/02)
Unstabilized imines are synthetized in gram-scale by vacuum dehydrochlorination of N-chloroalkylamines and by vacuum dehydrocyanation of α-aminonitriles on solid base.All the new compounds are characterized at low temperature by 1H, 13C NMR and IR spectroscopy.