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Synthesis 1975; 1975(1): 20-37
DOI: 10.1055/s-1975-23653
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Synthesis of Heterocycles by Means of the Ring Transformation Reactions of Monocyclic and Condensed 1,2-Oxazoles (Isoxazoles)

Tarozaemon NISHIWAKI*
  • *Department of Chemistry, Yamaguchi University, Yamaguchi City 753, Japan
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Publication History

Publication Date:
12 September 2002 (online)

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Methods for the synthesis of various three- to eight-membered heterocyclic ring systems utilising the ring transformation reactions of monocyclic and condensed 1,2-oxazole (isoxazole) derivatives are described in this review. 1. Three-membered Ring Systems 1.1. Saturated Rings 1.2. Unsaturated Rings 2. Four-membered Ring Systems 3. Five-membered Ring Systems 3.1. Rings Containing One Heteroatom 3.2. Azole Rings 4. Six-membered Ring Systems 4.1. Rings Containing One Heteroatom 4.2. Diazine, Oxazine, and Triazine Rings 5. Seven- and Eight-membered Ring Systems