N-Methylimidazole-promoted efficient synthesis of 1,3-oxazine-4-thiones under solvent-free conditions |
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| Authors: | Mohammad A. Khalilzadeh Issa Yavari Zinatossadat Hossaini Hasan Sadeghifar |
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| Affiliation: | (1) Chemistry Department, Islamic Azad University, PO Box 163, Qaemshahr, Iran;(2) Chemistry Department, Tarbiat Modares University, PO Box 14115-175, Tehran, Iran |
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| Abstract: | Abstract A novel method for oxazine ring formation is established using the reaction of ammonium thiocyanate and acid chlorides with napthols in the presence of N-methylimidazole to afford [1,3]oxazine-4-thione derivatives in excellent yields. Graphical abstract  |
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| Keywords: | Oxazine 1-Naphthol 2-Naphthol Benzoyl isothiocyanate Acid chloride |
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