A Kinetic Study on Nucleophilic Displacement Reactions of Phenyl Y-Substituted-Phenyl Carbonates with Alkali Metal Ethoxides: Metal Ion Effect and Reaction …

IH Um, JY Seo, JS Kang, JS An

Index: Um, Ik-Hwan; Seo, Ji-Yoon; Kang, Ji-Sun; An, Jun-Sung Bulletin of the Chemical Society of Japan, 2012 , vol. 85, # 9 p. 1007 - 1013,7

Full Text: HTML

Citation Number: 11

Abstract

Pseudo-first-order rate constants (k obsd) have been measured for reactions of phenyl Y- substituted-phenyl carbonates with alkali metal ethoxides (EtOM, M= Li, Na, and K). The plot of k obsd vs.[EtOM] curves upward for the reaction of diphenyl carbonate with EtOM but is linear for that with EtOK in the presence of 18-crown-6-ether (18C6), indicating that the reaction is catalyzed by M+ ions and the catalytic effect disappears in the presence of ...

Related Articles:

Surfactant-mediated solvent-free dealkylative cleavage of ethers and esters and trans-alkylation under neutral conditions

[Bhattacharya, Apurba; Patel, Nitin C.; Vasques, Tomas; Tichkule, Ritesh; Parmar, Gaurang; Wu, Jiejun Tetrahedron Letters, 2006 , vol. 47, # 4 p. 565 - 567]

Biosynthesis of the isoflavan isomucronulatol: origin of the 2′, 3′, 4′-oxygenation pattern

[Al-Ani, Hakim A. M.; Dewick, Paul M. Phytochemistry (Elsevier), 1980 , vol. 19, p. 2337 - 2340]

A Kinetic Study on Nucleophilic Displacement Reactions of Aryl Benzenesulfonates with Potassium Ethoxide: Role of K+ Ion and Reaction Mechanism Deduced from …

[Um, Ik-Hwan; Kang, Ji-Sun; Shin, Young-Hee; Buncel, Erwin Journal of Organic Chemistry, 2013 , vol. 78, # 2 p. 490 - 497]

More Articles...