Kinetic Study of the Radical Azidation with Sulfonyl Azides

被引：10
|
作者：
Weidner, Karin [1 ]
Renaud, Philippe [1 ]
机构：
[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland
来源：
AUSTRALIAN JOURNAL OF CHEMISTRY | 2013年 / 66卷 / 03期
基金：
瑞士国家科学基金会;
关键词：
NITROGEN BONDS; ALKYL AZIDES; ALKENES; CARBOAZIDATION; CARBON; HYDROAZIDATION; REDUCTION; AMINATION; OLEFINS;
D O I：
10.1071/CH12523
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Rate constants for the reaction between a secondary alkyl radical and two different sulfonyl azides were determined using bimolecular competing radical reactions. The rates of azidation were determined by competition with hydrogen atom transfer from tris(trimethylsilyl) silane ((TMS)(3)SiH) of the 4-phenylcyclohexyl radical. 3-Pyridinesulfonyl azide and trifluoromethanesulfonyl azide were found to have rate constants for azidation of 2 x 10(5) M-1 s(-1) and 7 x 10(5) M-1 s(-1) at 80 degrees C, respectively.
引用
收藏
页码：341 / 345
页数：5
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