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学科主题: 金属有机化学
题名: Palladium(II)-catalyzed enyne coupling reaction initiated by acetoxypalladation of alkynes and quenched by protonolysis of the carbon-palladium bond
其他题名: 钯(II)催化的以炔烃的氧钯化启动、以碳-钯键质解淬灭的烯炔偶联反应
作者: Zhao LG(赵立刚) ; Lu XY(陆熙炎) ; Xu Y(许蔚)
通讯作者: 陆熙炎
刊名: J. Org. Chem.
发表日期: 2005
卷: 70, 期:10, 页:4059-4063
收录类别: SCI
部门归属: 上海有机化学研究所
英文摘要: Divalent palladium-catalyzed inter- and intramolecular enyne coupling reactions initiated by acetoxypalladation of alkynes were developed. The reaction involves the acetoxypalladation of the alkyne, followed by the insertion of the alkene and the protonolysis of the carbon-palladium bond. The protonolysis of the carbon-palladium bond in the presence of bidentate nitrogen containing ligands is the key step in completing the Pd(II) catalytic cycle. The nitrogen-containing ligands, like halides, served to favor the protonolysis of the carbon-palladium bond over the P-H elimination in the Pd(II)-mediated reactions. The intermolecular coupling reactions provide an efficient method for synthesizing γ,δ-unsaturated carbonyls. The intramolecular coupling reactions offer a method to construct a variety of synthetically important carbo- and heterocycles. The asymmetric version of such a cyclization was developed with moderate enantioselectivity when employing pymox (pyridyl monooxazoline) as the ligand.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000228983300038
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/14832
Appears in Collections:金属有机化学国家重点实验室_期刊论文

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Recommended Citation:
Zhao LG,Lu XY,Xu Y. Palladium(II)-catalyzed enyne coupling reaction initiated by acetoxypalladation of alkynes and quenched by protonolysis of the carbon-palladium bond[J]. J. Org. Chem.,2005,70(10):4059-4063.
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