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Synthesis 1987; 1987(6): 525-531
DOI: 10.1055/s-1987-27994
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Six-Membered Heterocyclic Isocyanates and lsothiocyanates: Synthesis and Reactions

Gerrit L'abbé*
  • *Department of Chemistry, University of Leuven, Celestijnenlaan 200 F, B-3030 Heverlee, Belgium
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Publikationsdatum:
20. August 2002 (online)

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The title compounds constitute a unique class of heterocumulenes because of their high reactivity and tendency to di-, tri- or polymerize. The chemistry is reviewed with particular emphasis on synthetic methods, stability and reactivity in heterocyclic synthesis. 1. Introduction 2. Six-Membered Ring Isocyanates 2.1. Isocyanatopyridines 2.2. Isocyanatopyrimidines 2.3. Isocyanatopyrazines 2.4. Isocyanato-s-triazines 2.5. Heterocyclization Reactions 2.6. Some Applications 3. Six-Membered Ring Isothiocyanates 3.1. Isothiocyanatopyridines 3.2. Other Isothiocyanates 3.3. Heterocyclization Reactions 3.4. Some Applications