Syntheses and properties of arenediazonium and anilinium cation lariat ether complexes: an “ostrich molecule” complex and evidence for intramolecular sidearm - macroring interaction
作者:James R. Beadle、Dennis M. Dishong、Raj K. Khanna、George W. Gokel
DOI:10.1016/0040-4020(84)85070-x
日期:1984.1
The preparation of several novel lariat ethers (macrocyclic crown polyethers having sidearms bearing pendant donor groups) is reported, These compounds are ethers derived from known 2-hydroxymethyl-15-crown-5 or -21-crown-7. The sidearms Include 2-aminophenyl, 2,4-diaminophenyl, 2-nitrophenyl, 2-(3'-nitrobiphenyl), and 2-(3'-aminobiphenyl). In several cases, the amino groups were converted into ammonium
报道了几种新型套索状醚(具有带有侧链带有侧基供体基团的大环冠聚醚)的制备。这些化合物是衍生自已知的2-羟甲基-15-冠-5或-21-冠-7的醚。侧臂包括2-氨基苯基,2,4-二氨基苯基,2-硝基苯基,2-(3'-硝基联苯)和2-(3'-氨基联苯)。在一些情况下,氨基被转化为铵盐,该铵盐通过分子内氢键显示出基本的稳定性。同样,-NH 2 +。,BF 3 -该配合物显示出分子内氢键的证据。氨基联苯残基的重氮化反应产生了一个烯二唑鎓阳离子,该阳离子经历了分子内冠状络合,这是通过红外光谱研究判断形成的,我们称之为“鸵鸟分子”复合物。将N,N-二甲基苯胺添加到分子内的芳构氮鎓阳离子络合物中可制得偶氮化合物,但euro移试剂研究清楚地表明,重氮鎓阳离子在大环之外发生了反应。