Mass Spectrometry Study of 7-Chloro-3,4-dihydro-4,5-dioxo-3-substituted Aryl-2-thio-2H, 5H-pyrano [3,4-e]-1,3-Oxazine,their Morpholine and Alcohol Reaction Products |
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| Authors: | Jasim M A Al-rawi Abdul-Hakim Th Mahmood |
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| Institution: | 1. Chemistry Department , College of Science, University of Mosul , Mosul , IRAQ;2. Department of Physiology , Biochemistry and Pharmacology, Veterimary Medicine College, University of Mosul , Mosul , IRAQ |
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| Abstract: | Retro Diels-Alder mechanism is the main fragmentation pattern of the 7-chloro Pyrano oxazine (2),7-morpholino pyrano oxasine (3),5-morpholino carbonyl-4-oxo-3-substituted phenyl-2-thio-1-3-oxazine-6-ylacetomorpholide (4) and ethyl-6-ethoxy carbonyl methyl-4-oxo-3-(substituted phenyl)-2-thio-2H-1,3-oxazine-5-carboxylate (5). Further fragmentation routes were also discussed. |
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