- Synthesis of Oxazolidinones and Derivatives through Three-Component Fixation of Carbon Dioxide
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An effective three-component fixation of atmospheric CO2 with readily available 1,2-dichloroethane and aromatic amine toward oxazolidinones catalyzed by in situ NHC was developed. The reaction occurred in good to excellent yields with good gene
- Mei, Congmin,Zhao, Yibo,Chen, Qianwei,Cao, Changsheng,Pang, Guangsheng,Shi, Yanhui
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p. 3057 - 3068
(2018/06/04)
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- New simple synthesis of N-substituted 1,3-oxazinan-2-ones
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An efficient and simple synthesis of N-substituted 1,3-oxazinan-2-ones was developed that involves a three-component, one-pot reaction of readily available tetraethylammonium bicarbonate, 1,3-dibromopropane, and a primary amine in methanol at room temperature. l-Alanine can be used as the amino component to give the chiral product (2S)-2-(2-oxo-1,3-oxazinan-3-yl)propanoic acid. Georg Thieme Verlag Stuttgart ? New York.
- Trifunovic, Sreko,Dimitrijevic, Dejana,Vasic, Gordana,Radulovic, Niko,Vukicevic, Mirjana,Heinemann, Frank W.,Vukicevic, Rastko D.
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experimental part
p. 943 - 946
(2010/04/30)
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- The Cycloaddition of Heterocumulenes to Oxetanes in the Presence of Catalytic Amounts of Tetraphenylstibonium Iodide
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The cycloadditions of carbon dioxide, isocyanates and carbodiimides to oxetanes proceeded in the presence of catalytic amounts of tetraphenylstibonium iodide (1) under mild conditions, affording the corresponding six-membered heterocycles; 1,3-dioxan-2-ones, 1,3-oxazin-2-ones and 1,3-oxazin-2-imines in good yields, respectively.Moreover, the cycloaddition of 2-phenyloxetane proceeded via predominant ring-cleavage at substituted site.
- Fujiwara, Masahiro,Baba, Akio,Matsuda, Haruo
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p. 1659 - 1663
(2007/10/02)
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- Cycloaddition of Oxetanes with Heterocumulenes Catalyzed by Organotin-Lewis Base Complex
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A series of 2-oxazinones 1-8 were synthesized from the cycloaddition reactions of oxetanes with isocyanates by utilizing the complex of diphenyltin diiodide with hexamethylphosphoric triamide (HMPA) as a catalyst.Moreover, the reactions with carbodiimides
- Shibata, Ikuya,Imoto, Takafumi,Baba, Akio,Matsuda, Haruo
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p. 361 - 363
(2007/10/02)
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- NOVEL USE OF ORGANOTIN HALIDE-BASE COMPLEX IN ORGANIC SYNTHESIS. CYCLOADDITION REACTION OF OXETANE WITH ISOCYANATES.
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Cycloadditions of oxetanes with isocyanates were markedly accelerated by the complex of Bu2SnI2 and Ph3P=O which could be readily handled and hardly caused a trimerization of isocyanates, yielding oxazin-2-ones under neutral and mild reaction conditions.
- Baba, Akio,Shibata, Ikuya,Fujiwara, Masahiro,Matsuda, Haruo
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p. 5167 - 5170
(2007/10/02)
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