Unexpected deviation from diene behaviour of uracil amidine: towards synthesis of some pyrido[2,3-<Emphasis Type="Italic">d</Emphasis>]pyrimidine derivatives |
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| Authors: | Rupam Sarma Kalyan Jyoti Borah Yuvaraj Dommaraju Dipak Prajapati |
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| Institution: | (1) College of Science, Huazhong Agricultural University, Wuhan, Hubei 430070, China; |
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| Abstract: | Condensation products obtained from the treatment of uracil amidine with preformed or in situ generated suitably substituted
olefins unexpectedly undergo intramolecular cyclisation during silica gel chromatography to generate pyrido2,3-d]pyrimidines. Various reaction conditions are studied and the altered nature of the uracil amidine molecule is further explored
by reacting it with different suitably substituted alkenes. |
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