Nucleophilic substitution in the series of (1,2,3-triazol-1-yl)-1,2,5-oxadiazoles. Reactions with N-, O-, and S-nucleophiles
作者:V. Yu. Rozhkov、L. V. Batog、M. I. Struchkova
DOI:10.1007/s11172-006-0059-8
日期:2005.8
Methods for the synthesis of amino(1,2,3-triazol-1-yl)-1,2,5-oxadiazoles (amino-triazolylfurazans) with CH2Cl and COCH2Br substituents in the triazole ring were developed and nucleophilic substitution for their halogen atom in reactions with N-, O-, and S-nucleophiles were studied. The possibility of displacing the NO2 group from the furazan and triazole rings in triazolylfurazans by an azido group was investigated. Novel compounds of this series were synthesized; the reaction rate and pathway were found to depend on the nature of the substrate and the reagent and the position of the substituent in isomers.
发展了在咪唑环中含有CH2Cl和COCH2Br取代基的氨基(1,2,3-三唑-1-基)-1,2,5-噁二唑(氨基-三唑基噁二唑)的合成方法,并研究了其与N-、O-和S-亲核试剂反应中卤素的亲核取代反应。研究了在三唑基噁二唑的噁二唑环和三唑环中用叠氮基团取代NO2基团的可能性。合成了一系列新的化合物;发现反应速率和途径取决于底物和试剂的性质以及异构体中取代基的位置。