Synthesis and structural characterization of (pyrazolyl)alkenyl Fischer carbene complexes of chromium and tungsten
文献类型：期刊论文
| 作者 | Gu, KC; Chen, JZ; Zheng, ZY; Wu, SZ; Wu, XW; Han, XW; Yu, ZK |
| 刊名 | polyhedron
 |
| 出版日期 | 2005-01-06 |
| 卷号 | 24期号:1页码:173-180 |
| 关键词 | Fischer carbene pyrazole Michael addition chromium Tungsten |
| 产权排序 | 1;1 |
| 通讯作者 | 余正坤 |
| 英文摘要 | michael addition of substituted pyrazoles 2 to 1-alkynyl fischer carbene complexes (co)(5)m=c(oet)(cdropcph) (1) (a, m = cr and b m = w) afforded (pyrazolyl)alkenyl fischer carbene complexes (co)(5)m=c(oet)(ch=c(r(1)r(2)r(3)pz)ph) (r(1)r(2)r(3)pz = pyrazolyl) 3 (m = cr) and 4 (m = w), respectively, with an exclusive (e)-configuration in mild to excellent yields. the reaction of la and 3,5-dimethylpyrazole (2b) was monitored to demonstrate the formation and decomposition of complex 3b by h-1 nmr measurements in cdcl3 at 23degreesc. complexes 3 and 4 were characterized with h-1, c-13{h-1} nmr, ir spectroscopies and elemental analysis. when the substituted pyrazoles were 3-methylpyrazole (2a) and 3,5-di-tert-butylpyrazole (2d), molecular structures of the corresponding (pyrazolyl)alkenyl fischer carbene complexes 3a and 4d were characterized by x-ray crystallographic study. (c) 2004 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, inorganic & nuclear ; crystallography |
| 研究领域[WOS] | chemistry ; crystallography |
| 关键词[WOS] | transition-metal-complexes ; organic syntheses ; alkynylcarbene complexes ; annulation reactions ; michael addition ; triple bond ; imines ; ligand ; stereochemistry ; cycloaddition |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000226542200017 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/93059]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, KC,Chen, JZ,Zheng, ZY,et al. Synthesis and structural characterization of (pyrazolyl)alkenyl Fischer carbene complexes of chromium and tungsten[J]. polyhedron,2005,24(1):173-180. |
| APA | Gu, KC.,Chen, JZ.,Zheng, ZY.,Wu, SZ.,Wu, XW.,...&Yu, ZK.(2005).Synthesis and structural characterization of (pyrazolyl)alkenyl Fischer carbene complexes of chromium and tungsten.polyhedron,24(1),173-180. |
| MLA | Gu, KC,et al."Synthesis and structural characterization of (pyrazolyl)alkenyl Fischer carbene complexes of chromium and tungsten".polyhedron 24.1(2005):173-180. |
入库方式： OAI收割
来源：大连化学物理研究所
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