ChemInform Abstract: Carbon Transfer Reactions of Functionalized Oxazolidines and Their Open Chain Enamine Tautomers to Enamine Nucleophiles. A Facile Synthesis of Substituted Pyridines and Ring Annulated Derivatives.
✍ Scribed by K. SINGH; J. SINGH; H. SINGH
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 40 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Carbon Transfer Reactions of Functionalized Oxazolidines and Their Open Chain Enamine Tautomers to Enamine Nucleophiles. A Facile Synthesis of Substituted Pyridines and Ring Annulated Derivatives.
-Oxazolidines like (II) capable of existing as enamine tautomers and having additional electrophilic and/or nucleophilic reactive sites in the C-2 appendages, undergo 1:1 stoichiometric reactions affording substituted or annulated pyridines of type (III), (V), and (IX). Oxazinones like (VI) existing as ring-imine tautomers react with enamine (IV) and uracil (VIII) in a 1:2 stoichiometric mode yielding annulated pyridines like (VII), (X), and (XI). -(SINGH, K.;