- Regioselective synthesis of 2-iminooxazinones from dioxinones and carbodiimides
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Iminooxazinones are readily formed via microwave heating of dioxinones in the presence of carbodiimides. Unsymmetrically substituted carbodiimides generally react with high or complete regioselectivity, allowing for assembly of the target ring systems wit
- Johnston, Jeffrey R.,West
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p. 5479 - 5482
(2013/01/13)
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- Reaction of 2,2-dimethyl-1,3-dioxin-4-ones with Imines, Carbodiimides, and Isocyanates
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The ring transformation of 2,2-dimethyl-1,3-dioxin-4-ones (1) to nitrogen heterocycles was studied.Heating of 1 whith imines such as Schiff bases gave rise to cycloadducts of imines to acylketenes (2), i.e., 3,4-dihydro-1,3-oxazin-4-one derivatives
- Sato, Masayuki,Ogasawara, Hiromichi,Kato, Tetsuzo
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p. 2602 - 2608
(2007/10/02)
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