Intramolecular carboxylic group??assisted cleavage of N??(2??hydroxyphenyl) phthalamic acid (7) and N??(2??methoxyphenyl) phthalamic acid (8): Absence of …

YL Sim, A Ariffin, MN Khan

Index: Sim, Yoke-Leng; Ariffin, Azhar; Khan, M. Niyaz International Journal of Chemical Kinetics, 2006 , vol. 38, # 12 p. 746 - 758

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Citation Number: 13

Abstract

Abstract The values of pseudo first-order rate constants (k obs) for the cleavage of N-(2- hydroxyphenyl) phthalamic acid (7), obtained at 4.9× 10− 2 M HCl, 35 C, and within CH 3 CN content range 2–80%(v/v) in mixed aqueous solvent are smaller than k obs for the cleavage of N-(2-methoxyphenyl) phthalamic acid (8), obtained under almost similar experimental conditions, by nearly 1.5-to 2-fold. These observations show the absence of ...