Pyrazoles by dealkylation of pyrazolium salts

B Cross, RL Arotin, CF Ruopp

文献索引：Cross; Arotin; Ruopp Journal of Heterocyclic Chemistry, 1980 , vol. 17, # 5 p. 905 - 910

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被引用次数: 6

摘要

Abstract A rapid, convenient conversion of 1, 2-dimethylpyrazolium salts (1) to 1- methylpyrazoles (2) is accomplished in piperidine or 3-methylpiperidine at temperatures≥ 106. This demethylation represents a particularly useful procedure for the synthesis of 3-and