Palladium??catalyzed dehalogenation of 5??halopyrazoles

…, K Kaneko, M Kimura, H Takayama…

文献索引：Chen, Chun-Yen; Huang, Yu-Ying; Su, Wei-Nien; Kaneko, Kimiyoshi; Kimura, Masayuki; Takayama, Hiroyuki; Wong, Fung Fuh Journal of Heterocyclic Chemistry, 2012 , vol. 49, # 1 p. 183 - 189

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被引用次数: 7

摘要

Abstract A new and efficient method for the dehalogenation of 5-halopyrazoles was developed by using the catalytic amount of palladium (II) chloride and triphenylphosphine as a ligand at reflux under constant flow of hydrogen gas. The reaction gave the corresponding pyrazole products in good to excellent yields (≥ 83%). J. Heterocyclic Chem.,(2012).