Diastereoselective synthesis of fused [1,3]oxazines from ethyl pyruvate,activated acetylenes and N-heterocycles |
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| Authors: | Issa Yavari Anvar Mirzaei Zinatosadat Hossaini and Sanaz Souri |
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| Institution: | (1) Chemistry Department, Science & Research Campus, Islamic Azad University, Ponak, Tehran, Iran;(2) Chemistry Department, Tarbiat Modarres University, 14115–175 Tehran, Iran |
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| Abstract: | The 1:1 zwitterionic intermediates obtained from the reaction between isoquinoline, quinoline, pyridine, or N-methylimidazole with activated acetylenes are trapped by ethyl pyruvate to produce highly functionalized fused 1,3]oxazines
in good yields. |
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