Affiliation:
1. Department of Organic Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia
2. Institute of Organic Synthesis of Russian Academy of Sciences, S. Kovalevskoy St., 22, 620041 Ekaterinburg, Russia
Abstract
New heterocyclic tetracyclic systems were synthesized. Interaction between 3-R-1,2,4-triazin- 5(4H)-ones and cyclic ketones under acidic conditions leads to the formation of zwitterion derivatives of 5,6,7,8,9,10,11,12-octahydro-[1,2,4]triazino[1,6- ƒ ]phenanthridine and 1,2,3,6,7,8-hexahydro-bicyclopenta[ b,d]pyrido[1,2- ƒ ][1,2,4]triazine.
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6 articles.
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