Enaminone Derivatives

Introduction Enamine derivatives are highly reactive intermediates and are difficult to obtain and other heterocyclic compounds which are useful as starting materials for the preparation of N - 1 and / or N - 2 substituted pyrazoles [ 1-4], which has been widely used. - 31. On the other hand, due to its biological activity attention has been paid to the synthesis of functionalized pyridine derivatives [5-8]. Given these observations and our previous efforts to develop synthetic methods for constructing biologically active heterocycles [9-12], we have now found that various pyrazoles, isoxazoles, Report the simple disintegration of pyrimidine.

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