Hammett Correlation of Nornicotine Analogues in the Aqueous Aldol Reaction: Implications for Green Organocatalysis
摘要:
A series of meta- and para-substituted 2-arylpyrrolidines were synthesized and examined for their ability to catalyze an aqueous aldol reaction under buffered conditions. Kinetic analysis of arylpyrrolidine-catalyzed reactions displayed a linear Hammett correlation with rho = 1.14 (R-2 = 0.996), indicating that the reaction is accelerated by electron-withdrawing aryl rings. These results show promise for the development of a synthetically viable aqueous organo-catalyst.
Hammett Correlation of Nornicotine Analogues in the Aqueous Aldol Reaction: Implications for Green Organocatalysis
作者:Claude J. Rogers、Tobin J. Dickerson、Andrew P. Brogan、Kim D. Janda
DOI:10.1021/jo050161r
日期:2005.4.1
A series of meta- and para-substituted 2-arylpyrrolidines were synthesized and examined for their ability to catalyze an aqueous aldol reaction under buffered conditions. Kinetic analysis of arylpyrrolidine-catalyzed reactions displayed a linear Hammett correlation with rho = 1.14 (R-2 = 0.996), indicating that the reaction is accelerated by electron-withdrawing aryl rings. These results show promise for the development of a synthetically viable aqueous organo-catalyst.