Extension of the e.t. mechanism of aromatic nitration to the formation of Grignard reagents of RX (R = alkyl, aryl, cyclopropyl, vinyl).: The ion pair collapse versus radical pair collapse hypothesis

被引:6
作者
Berg, U [1 ]
Bodineau, N [1 ]
Négrel, JC [1 ]
Mattalia, JM [1 ]
Timokhin, V [1 ]
Handoo, K [1 ]
Marchi, C [1 ]
Chanon, M [1 ]
机构
[1] Ctr Chem, SE-22100 Lund, Sweden
来源
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE C-CHIMIE | 2001年 / 4卷 / 07期
关键词
Grignard reagents; mechanism; radical clock;
D O I
10.1016/S1387-1609(01)01268-3
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The ion pair collapse versus radical pair collapse hypothesis is proposed for the Grignard reagent formation as an extension of the e.t. mechanism of aromatic nitration. Such a scheme, never examined before for the Grignard reaction, could explain the evolution of the 'free radical character' depending on experimental conditions and the nature of the substrate. (C) 2001 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码:567 / 570
页数:4
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