Branched non-covalent complexes between carboxylic acids and two tris(amidines)

被引：39

作者：

Kraft, A ^{[1
]}

机构：

[1] Univ Dusseldorf, Inst Organ Chem & Makromol Chem 2, D-40225 Dusseldorf, Germany

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1999年 / 06期

关键词：

D O I：

10.1039/a809190k

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Carboxylic acids and two tris(amidine) bases formed branched 3:1 complexes with high solubility in chlorinated and aromatic solvents, particularly when aromatic carboxylic acids with suitable solubilising substituents were used. Whereas N,N'-diethylamidine complexes 10 proved to be difficult to isolate, the respective imidazoline complexes 14 were easily purified by crystallisation. Association constants were determined for model bis(imidazoline) complexes to be about 10(3) dm(3) mol(-1) in the competitive solvent mixture CDCl3-CD3OD (97:3).

引用

页码：705 / 714

页数：10

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