Palladium-catalyzed dehalogenation of 5-halopyrazoles

Chun-Yen Chen; Yu Ying Huang; Wei Nien Su; Kimiyoshi Kaneko; Masayuki Kimura; Hiroyuki Takayama; Fung Fuh Wong

doi:10.1002/jhet.845

Palladium-catalyzed dehalogenation of 5-halopyrazoles

Chun-Yen Chen, Yu Ying Huang, Wei Nien Su, Kimiyoshi Kaneko, Masayuki Kimura, Hiroyuki Takayama, Fung Fuh Wong

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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%)..

Original language	English
Pages (from-to)	183-189
Number of pages	7
Journal	Journal of Heterocyclic Chemistry
Volume	49
Issue number	1
DOIs	https://doi.org/10.1002/jhet.845
Publication status	Published - 2012 Jan
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry

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10.1002/jhet.845

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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%)..",

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AU - Kimura, Masayuki

AU - Takayama, Hiroyuki

AU - Wong, Fung Fuh

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AB - 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%)..

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Palladium-catalyzed dehalogenation of 5-halopyrazoles

Abstract

All Science Journal Classification (ASJC) codes

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