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https://dspace.uzhnu.edu.ua/jspui/handle/lib/5075| Title: | Synthesis of [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium and [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts via regioselective electrophilic cyclization of 3-S-alkenylthio-4Н-1,2,4-triazoles |
| Other Titles: | Синтез [1,3]тіазоло[3,2-b][1,2,4]триазол-7-ієвих та [1,2,4]триазоло[5,1-b][1,3]тіазин-4-ієвих солей регіоселективною електрофільною гетероциклізацією 3-S-алкенілтіо-4Н-1,2,4-триазолів |
| Authors: | Сливка, Михайло Васильович Король, Наталія Іванівна Русин, Іван Федорович Лендєл, Василь Георгійович |
| Keywords: | [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium and [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts, halogen, Selenium tetrahalogenides, Tellurium tetrahalogenides, electrophilic cyclization, regioselectivity., Regioselective cyclization of 3-S-alkenyl-4Н-1,2,4-triazoles |
| Issue Date: | 28-Nov-2015 |
| Publisher: | De Gruyter Publ. |
| Citation: | Mikhailo Slivka, Nataliya Korol, Ivan Rusyn, Vasyl Lendel. Synthesis of [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium and [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts via regioselective electrophilic cyclization of 3-S-alkenylthio-4Н-1,2,4-triazoles. // Heterocycl. Cоmmun. – 2015 Volume 21, Issue 6, Pages 397–401. on-line DOI: 10.1515/hc-2015-0158, November 2015 . Impact Factor (2014): 0.593 (Web of Science, Scopus). SNIP (2014) 0.31 |
| Series/Report no.: | Наукова стаття;2015-16 |
| Abstract: | A convenient procedure for the regioselective preparation of [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium and [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts via regioselective electrophilic cyclization of 3-S-alkenylthio-4Н-1,2,4-triazoles is reported. Direction of electrophilic heterocyclization strongly depends on nature of alkenyl substitutent: halogenation tetrahalogenhalcogenation of methallylthiotriazoles lead to formation of [1,3]thiazolo[3,2-b][1,2,4]triazole system; on the contrary, the similar halocyclization of cinnamylthiotriazoles yields the [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts. |
| Description: | Mikhailo Slivka* http://www.degruyter.com/view/j/hc.2015.21.issue-6/hc-2015-0158/hc-2015-0158.xml?format=INT Organic Synthesis Laboratory, Uzhhorod National University, Uzhhorod 88000, Ukraine *Corresponding author: e-mail: [email protected] |
| Type: | Other |
| Publication type: | Стаття |
| URI: | https://dspace.uzhnu.edu.ua/jspui/handle/lib/5075 |
| ISSN: | ISSN (Online) 2191-0197, ISSN (Print) 0793-0283, |
| Appears in Collections: | Наукові публікації кафедри органічної хімії |
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