A facile S-transalkylation of 2,2′-bipyridine alkyl sulfides—a new tool for the synthesis of annulated biheterocycles |
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| Authors: | Danuta Branowska Andrzej Rykowski Waldemar Wysocki |
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| Institution: | University of Podlasie, Department of Chemistry, ul. 3 Maja 54, 08-110 Siedlce, Poland |
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| Abstract: | A simple and efficient synthesis of annulated 2,2′-bipyridinium salts with attached dihydrothiazole or dihydro-1,3-thiazine rings has been developed through tandem S-transalkylation/intramolecular ring closure of 2,2′-bipyridine alkyl sulfides. The structures were confirmed by X-ray crystallographic analysis. |
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| Keywords: | S-Transalkylation Annulated diquaternary 2 2&prime -bipyridinium salts |
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