SYNTHESIS OF STABLE FREE-RADICALS - A NOVEL FAMILY OF OLIGOPYRIDINE BASED NITRONYL-NITROXIDE BIRADICALS

被引：21
|
作者：
ULRICH, G
ZIESSEL, R
LUNEAU, D
REY, P
机构：
[1] INST PHYS & CHIM MAT STRASBOURG,ECOLE EUROPEENNE HAUTES ETUD IND CHIM STRASBOURG,F-67008 STRASBOURG,FRANCE
[2] CEN,SESAM,DRFMC,CEA,F-38041 GRENOBLE,FRANCE
来源：
TETRAHEDRON LETTERS | 1994年 / 35卷 / 08期
关键词：
D O I：
10.1016/0040-4039(94)88026-3
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Diformyl substituted pyridines (al the 2,5 and 2,6 positions), 2,2'-bipyridines (at the 4,4', 5,5', and 6,6' positions), 3,6-di-(6-carboxyaldehyde-2-pyridyl)-pyridazine and 2,9-dicarboxyaldehyde-1,1O-phenanthroline react with N,N'-dihydroxy-2,3-diamino-2,3-dimethylbutane to yield the bis-N,N'-dihydroxyimidazolidine. Mild oxidation afforded the corresponding nitronyl-nitroxide biradicals 1 to 7. These ligands are highly colored and form very stable transition metal complexes.
引用
收藏
页码：1211 / 1214
页数：4
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