Synthesis and recyclization of 6-benzyl-3a,4,5,6,7,7a-hexahydro-3a-hydroxy-7a-methyl-2-thioxo-5-phenyloxazolo[5,4-c]pyridines |
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Authors: | G V Pshenichnyi V A Mashenkov |
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Institution: | (1) A. M. Gor'kii Minsk State Pedagogical Institute, 220809 Minsk |
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Abstract: | The corresponding oxazolo5,4-c]pyridines were obtained in the reaction of stereoisomeric 1-benzyl-3-hydroxy-3-methyl-6-phenyl-4-piperidines with potassium thiocyanate in acetic acid and rearranged into 6-benzyl-5,6,7,8-tetrahydro-1-methyl-3-thioxo-7-phenyloxazolo3,4-c]pyrimidine by boiling in o-xylene. It was shown that the rearrangement is reversible.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1262–1265, September, 1992. |
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