Synthesis and properties of some derivatives of 2-thionoindeno [1,2-d]-pyrimidine and indeno [1,2-d] [3,1] thiazine |
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Authors: | A Z Zandersons V K Lusis é é Liepin'sh D Kh Mutsenietse E L Khanina G Ya Dubur |
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Institution: | (1) Institute of Organic Synthesis, Academy of Sciences of the Latvian SSR, 226006 Riga |
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Abstract: | Derivatives of 2-thiono-5-oxo-2,3,4,5-tetrahydroindeno1,2-d] pyrimidine and 5-oxo-1,2,4,5-tetrahydroindeno 1,2-d] 3,1] thiazine are formed in the cyclocondensation of 2-arylideneindan-1,3-diones with thiourea and N-monomethylthiourea, while only derivatives of indeno 1,2-d]-pyrimidine are formed in the reaction with N,N-di-methylthiourea. S- and N(3)-Alkylation occur in the alkylation of 2-thiono-4-pheny1-5-oxo-2,3,4,5-tetrahydroindeno1,2-d]pyrimidine, while only the N-methyl derivative is formed in the alkylation of 2,5-dioxo-4-phenyl-1,2,4,5-tetrahydroindeno 1,2-d] 3,1]thiazine.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1136–1141, August, 1988. |
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