Heterocycles derived from heteroatom-substituted carbenes

Article Abstract:

The reactions, which afford heterocyclic products via a heteroatom-substituted carbene intermediate, are reviewed. The study shows that compared to the chemistry of typical carbon- or halogen-substituted carbenes, which have been extensively investigated, the chemistry of heteroatom-substituted carbenes is considerably more diverse and complex.

Carbides

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Fluorous synthesis of heterocyclic systems

Article Abstract:

The synthesis of heterocyclic systems using fluorous reagents, catalysts, scavengers, protecting groups, and tags are reviewed. The application of fluorous technologies in multicomponent reactions, microwave reactions, solid-phase reactions, triphasic reactions, and mixture synthesis is also discussed.

Industrial Gas Manufacturing, Industrial gases, Fluorine

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The Pummerer reaction: methodology and strategy for the synthesis of heterocyclic compounds

Article Abstract:

The Pummerer-based transformations for the construction and manipulation of heterocyclic compounds, especially intramolecular Pummerer reactions are reviewed. The study shows that the formation of five-membered heterocyclic ring systems by this method represents a particularly efficient process.

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