Reaction of 5-halo-1,2,3-thiadiazoles with aliphatic diamines. Synthesis and intramolecular cyclization of bis(1,2,3-triazolyl-1,2,3-thiadiazolyl)sulfides
作者:Natalya N. Volkova、Evgeniy V. Tarasov、Mikhail I. Kodess、Luc Van Meervelt、Wim Dehaen、Vasiliy A. Bakulev
DOI:10.1039/b307693h
日期:——
3-thiadiazoles and aliphatic diamines. We have found that the last step of the process is the cyclization of initially formed bis(1,2,3-triazolyl-1,2,3-thiadiazolyl)sulfides. The structures of the intermediates and products were supported by different NMR spectroscopic methods (1H coupled 13C NMR, 2D HETCOR, HMBC and 1D INADEQUATE experiments) and mass spectrometry. Differences in the reaction pathway for
双[1,2,3]三唑[1,5-f:5',1'-b] [1,3,6]噻二氮杂和[1,5-g:5',1'-b] [1 ,3,7]噻二唑环体系已由5-卤代1,2,3-噻二唑和脂肪族二胺合成。我们发现该方法的最后一步是最初形成的双(1,2,3-三唑基-1,2,3-噻二唑基)硫化物的环化。中间体和产物的结构由不同的NMR光谱方法(1H耦合13C NMR,2D HETCOR,HMBC和1D INADEQUATE实验)和质谱法支持。确定了脂肪族和亲核性较低的芳族二胺的反应途径差异。