Étude cinétique de la synthèse des carbocyanines. II. Catalyse de l'aminolyse des sels de β-ethylthiovinyl-2cycloammoniums par les anions et par les solvants
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1976
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A. Guillaume et al., « Étude cinétique de la synthèse des carbocyanines. II. Catalyse de l'aminolyse des sels de β-ethylthiovinyl-2cycloammoniums par les anions et par les solvants », Bulletins de l'Académie Royale de Belgique, ID : 10.3406/barb.1976.61568
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Résumé
In the first paper of this series, the aminolysis of the derivates of ϐ-ethylthiovinyl-2 cycloammoniums was investigated at low concentration (4. 10-5 ML-1) and a general reaction scheme was given. In the present publication, catalytic activities of various anions and dif¬ ferent solvents were evidenced and submitted to a quantitative study. The global anion effect was looked at, by adding the corresponding tetraethyl-ammonium salts (Cl-, Br-