… Reactions of 3, 4-Dinitrophenyl Diphenylphosphinothioate with Alkali Metal Ethoxides in Anhydrous Ethanol: Effect of Changing Electrophilic Center from P= O to P= …

…, G Namkoong, JS Kang, IH Um

Index: An, Jun-Sung; Namkoong, Gil; Kang, Ji-Sun; Um, Ik-Hwan Bulletin of the Korean Chemical Society, 2011 , vol. 32, # 7 p. 2423 - 2427

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Citation Number: 3

Abstract

Abstract Pseudo-first-order rate constants () have been measured spectrophotometrically for nucleophilic substitution reactions of 3, 4-dinitrophenyl diphenylphosphinothioate 9 with alkali metal ethoxides (EtOM, M= Li, Na, K) in anhydrous ethanol at. The plot of vs.[EtOM] is linear for the reaction of 9 with EtOK. However, the plot curves downwardly for those with EtOLi and EtONa while it curves upwardly for the one with EtOK in the presence of 18- ...