Nucleophilicity of the bis(4-nitrophenyl)methyl anion

被引：8

作者：

Berger, Stefan T. A. ^{[1
]}

Lemek, Tadeusz ^{[2
]}

Mayr, Herbert ^{[1
]}

机构：

[1] Univ Munich, Dept Chem & Biochem, Butenandtstr 5-13 Haus F, D-81377 Munich, Germany

[2] Agr Univ Krakow, Dept Chem, PL-31120 Krakow, Poland

来源：

ARKIVOC | 2008年

关键词：

Kinetics; linear free energy relationship; nucleophilicity; intrinsic barriers;

D O I：

10.3998/ark.5550190.0009.a05

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Kinetics of the reactions of the bis(4-nitrophenyl)methyl anion 1 with quinone methides and other Michael acceptors have been measured in dimethyl sulfoxide solution at 20 degrees C. The second-order rate constants k(2) have been used to determine the nucleophilicity parameters N = 19.9 and s = 0.67 of 1 according to the linear free energy relationship log k(20 degrees C) = s(N + E).

引用

页码：37 / 53

页数：17