Characterization of Transition States in Dichloro(1,4,7-triazacyclononane)copper(II)-Catalyzed Activated Phosphate Diester Hydrolysis
作者:Kim A. Deal、Alvan C. Hengge、Judith N. Burstyn
DOI:10.1021/ja952306p
日期:1996.1.1
The reaction mechanism for Cu[9]aneN3Cl2-catalyzed hydrolysis of ethyl 4-nitrophenyl phosphate was probed using kineticisotopeeffects and isotope exchange experiments. The solvent deuterium isotope effect (Dk = 1.14), combined with the absence of 18O incorporation into 4-nitrophenol, suggests that hydrolysis proceeds through intramolecular attack of the metal-coordinated hydroxide at the phosphorus