Facile and straightforward method leading to substituted 4-amino-1-arylpyrazoles.

[摘要]：A new method for the synthesis of substituted 4-amino-1-arylpyrazoles is described, starting from b-enaminones and variously substituted benzenediazonium tetrafluoroborates. The reaction proceeds under mild conditions, is very simple to perform, and is applicable to a relatively wide range of substituents, both at the b-enaminone and diazonium salt starting materials.

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