- 作者: 葉茂榮 ; 胡滌華 ; 黃奇等
- 作者服務機構: 成功大學化學系
- 中文摘要: In order to examine the effect of iodide ions on reaction catalyzed by phase-transfer technique, we made kinetic studies, under the influence of added NaI, on the synthesis of benzyl esters from benzyl chloride and sodium carboxylate. These carboxylates include sodium acetate, sodium benzoate, sodium salicylate and sodium formate; the catalyst was a quaternary ammonium salt. The results reveal that iodide ions at a suitable concentration accelerate the reaction, whereas iodide ions in excess poison the catalyst. The optimum concentration varies with the reaction system. This critical concentration depends upon the distribution coefficient of the intermediates formed in the reactions.
- 英文摘要: --
- 中文關鍵字: Phase-Transfer Catalysis; Iodide Ion; Distribution Coefficient; Quaternary Ammonium Salt; Benzyl Ester; Synthesis; Kinetics; Benzyl Chloride; Sodium Carb
- 英文關鍵字: 相轉移催化;碘離子;分布係數;第四級銨鹽(季銨鹽);合成;動力學;氯化基(.alpha.-氯甲苯);羧酸鈉鹽