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 aliphaticdiamines. 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