Degenerate Ring Transformations of Heterocyclic Systems

Classification of Degenerate Ring Transformations of Heterocyclic Systems 

Degenerate ring transformations of heterocyclic systems that have been discovered to date can be classified in two main groups (1) Nucleophilic 

These substitution reactions have been studied in detail, mainly in the laboratory of Organic Chemistry of the Agricultural University of Wa-geningen (the Netherlands). They are found to proceed in many heterocyclic ring systems. 

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B. Classification of Degenerate Ring Transformations of Heterocyclic Systems... 

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