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Unusual dimerization of 1-ethyl-1,2,4-triazinium salts into 4a,4b,9,10-tetrahydro-1,3,6,8,8a,10a-hexaazaphenanthrenes |
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| Authors: | ON Chupakhin BV Rudakov SG Alexeev VN Charushin VA Chertkov |
| Institution: | aLaboratory of Organic Chemistry, The Urals Polytechnical Institute, Sverdlovsk, 620002, U.S.S.R. bLaboratory of NMR Spectroscopy, Moscow State University, Moscow, 119899, U.S.S.R. |
| Abstract: | 1- Ethyl-3-alkylthio-5-phenyl-l,2,4-triazinium tetrafluoroborates were found to undergo an unusual dimerization on treatment with triethylamine in methanol or ethanol solution. A mechanism for the formation of 4a,4b,9,10-tetrahydro-l,3,6,8,8a,l0a-hexaazaphenanthrenes is proposed. |
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