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α-Phenyl-N-iso-propylnitrone 유도체에 대한 Potassium Cyanide의 친핵성 첨가반응 메카니즘과 반응 속도론적 연구
이광일,곽천근,장병만 경기대학교 1995 論文集 Vol.37 No.-
The rate constant of the nucleophilic addition of potassium cyanide to α-phenyl-N-iso-propylnitrone derivatives were determined at various pH and a rate equation which can be applied over wide pH range is obtained. Final product of the addition reaction was α-cyano-p-phenylbenzyliden-N-iso-propyl amine. Base on the rate equation, general base effect, substituent effect and final product, plausible mechanism of addition reaction have been proposed. Below pH 3.0, the reaction was initiated by the addition of netural hydrogen cyanide, and in the range of pH 3.0-10.0, proceeded by the competitive addition of hydrogen cyanide and cyanide anion. Above the pH 10.0, the reaction proceeded through the addition of cyanide anion.