Palladium-catalyzed coupling of pyrazoles with 2,6-dibromopyridine

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	Palladium-catalyzed coupling of pyrazoles with 2,6-dibromopyridine
	Sun XJ 1; Yu ZK 1; Deng HX 1; Wu XW 1; Wu SZ 1; Dong JH 1
	2005
发表期刊	CHINESE JOURNAL OF CATALYSIS
ISSN	0253-9837
卷号	26 期号:3 页码:173-174
摘要	A rich chemistry involving pyrazoles and pyra-zolato ligands ' has evolved since pyrazoles were first prepared in 1968^ , due to the potential bioactivity of pyrazole derivatives and their use as ligands. Phos-phorus-based ligands play a very important role in or-ganic synthesis and catalysis. Recently, new classes of ligands with donor atoms other than phosphorus, particularly nitrogen donor ligands, have been paid more and more attention because phosphine ligands easily undergo degradation, and organometallic com-plexes bearing nitrogen donor ligands show high ac-tivity. 2,6-Bis(N-pyrazolyl)pyridines (4) were first prepared from the reactions of 2,6-dihalopyridines and potassium pyrazolates under harsh conditions *, and have been paid little attention'-5 . The Cul-cat-alyzed N-arylation of 3-bromopyridine and aromatic halides with 2a~2c or other less bulky pyrazoles was reported in Ref 6 .
其他摘要	A rich chemistry involving pyrazoles and pyra-zolato ligands ' has evolved since pyrazoles were first prepared in 1968^ , due to the potential bioactivity of pyrazole derivatives and their use as ligands. Phos-phorus-based ligands play a very important role in or-ganic synthesis and catalysis. Recently, new classes of ligands with donor atoms other than phosphorus, particularly nitrogen donor ligands, have been paid more and more attention because phosphine ligands easily undergo degradation, and organometallic com-plexes bearing nitrogen donor ligands show high ac-tivity. 2,6-Bis(N-pyrazolyl)pyridines (4) were first prepared from the reactions of 2,6-dihalopyridines and potassium pyrazolates under harsh conditions *, and have been paid little attention'-5 . The Cul-cat-alyzed N-arylation of 3-bromopyridine and aromatic halides with 2a~2c or other less bulky pyrazoles was reported in Ref 6 .
关键词	COMPLEXES palladium pyrazole 2,6-dibromopyridine coupling potassium tert-butoxide
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:1995770
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/152569
专题	中国科学院金属研究所
作者单位	1.中国科学院 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Sun XJ,Yu ZK,Deng HX,et al. Palladium-catalyzed coupling of pyrazoles with 2,6-dibromopyridine[J]. CHINESE JOURNAL OF CATALYSIS,2005,26(3):173-174.
APA	Sun XJ,Yu ZK,Deng HX,Wu XW,Wu SZ,&Dong JH.(2005).Palladium-catalyzed coupling of pyrazoles with 2,6-dibromopyridine.CHINESE JOURNAL OF CATALYSIS,26(3),173-174.
MLA	Sun XJ,et al."Palladium-catalyzed coupling of pyrazoles with 2,6-dibromopyridine".CHINESE JOURNAL OF CATALYSIS 26.3(2005):173-174.