Synthesis and 1H, 13C, 14N, 15N, 29Si NMR study of trimethylsilylquinolines and their methiodides
作者:Edmunds Lukevics、Edvards Leipiņš、Izolda Segal、Mendel Fleisher
DOI:10.1016/0022-328x(91)83116-l
日期:1991.4
5-, 6-, 7- and 8-trimethylsilylquinolines and their methiodides as well as some 2-silyl-alkylquinolines were obtained by lithium synthesis in order to elucidate intramolecular donor-acceptor interactions between nitrogen and silicon atoms. 1H, 13C, 14N, 15N and 29Si NMR spectra of the compounds were studied and quantum-chemical calculation of charges on individual atoms in the unsubstituted quinoline
通过锂合成获得2-,3-,4-,5-,6-,7-和8-三甲基甲硅烷基喹啉及其甲硫醚以及一些2-甲硅烷基烷基喹啉,以阐明氮与氮之间的分子内供体-受体相互作用。硅原子。1 H,13 C,14 N,15 N和29研究了化合物的Si NMR谱,并对未取代的喹啉和三甲基甲硅烷基喹啉分子中单个原子上的电荷进行了量子化学计算。计算了各种键的总系统能量的两个中心部分。这些发现表明2-三甲基甲硅烷基喹啉中氮与硅原子之间的供体-受体相互作用降低了氮原子上的电子密度。在8-三甲基甲硅烷基喹啉中观察到明显较弱的相互作用。