| Palladium-catalyzed coupling of pyrazoles with 2,6-dibromopyridine | |
| Sun XJ1; Yu ZK1; Deng HX1; Wu XW1; Wu SZ1; Dong JH1 | |
| 2005 | |
| Source Publication | CHINESE JOURNAL OF CATALYSIS
 |
| ISSN | 0253-9837 |
| Volume | 26Issue:3Pages:173-174 |
| Abstract | 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 . |
| Other Abstract | 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 . |
| Keyword | COMPLEXES palladium pyrazole 2,6-dibromopyridine coupling potassium tert-butoxide |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:1995770 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/152569 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院 2.中国科学院金属研究所 |
| Recommended Citation 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. |
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