Synthesis of 2-selenothieno[2,3-d]pyrimidine derivatives |
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Authors: | I V Smolanka S M Khripak A A Zeikan' A A Dobosh |
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Institution: | (1) Uzhgorod State University, 294000 Uzhgorod |
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Abstract: | Intramolecular cyclization of 2-(N-acylselenoureido)-3-carbethoxy-4,5,6,7-tetrahydrobenzob]thiophenes in alkaline media leads to the formation of the potassium salt (I) of 2-seleno-4-oxo-3,4,5,6,7,8-hexahydrobenzob]thieno2,3-d]pyrimidine, acidification of which yielded the corresponding base in free form. Some pyrimidine compounds containing a selenium atom in the side chain were obtained by reaction of potassium salt I with halo derivatives (ClCH2CH2COOCH3 and ClCH2CH2OH).Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 753–754, June, 1977. |
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