Synthesis and Pyrolysis of Tetrahydro-1,4-oxazine-3,5-diones and Tetrahydro-1,4-thiazine-3,5-diones |
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| Authors: | R. A. Aitken D. M. M. Farrell E. H. M. Kirton |
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| Affiliation: | (1) School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9ST, UK |
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| Abstract: | The preparation and characterization of six 4-substituted tetrahydro-l,4-oxazine-3,5-diones and five 4-substituted tetrahydro-l,4-thiazine-3,5-diones is described. Upon flash vacuum pyrolysis at 700°C these give N-substituted acetamides and nitriles, and a mechanism for formation of these products is proposed. |
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| Keywords: | acetamides diradicals nitriles tetrahydrooxazinediones pyrolysis |
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