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亚胺钯环:在半水相介质中的 Suzuki-Miyaura 交叉偶联反应中的合成、结构分析及应用。

Imine Palladacycles: Synthesis, Structural Analysis and Application in Suzuki-Miyaura Cross Coupling in Semi-Aqueous Media.

机构信息

Department of Inorganic Chemistry, University of Santiago de Compostela, E-15702 Santiago de Compostela, Spain.

出版信息

Molecules. 2022 May 14;27(10):3146. doi: 10.3390/molecules27103146.

DOI:10.3390/molecules27103146
PMID:35630622
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9144456/
Abstract

Treatment of the imines with palladium(II) acetate in acetic acid yielded the μ-acetate dinuclear complexes , which readily reacted with sodium chloride or bromide to provide μ-halide analogues. The reaction of the latter with nitrogen, phosphorus and oxygen donor nucleophiles yielded new imine palladacycles following the cleavage of the PdX unit. The complexes were fully characterized by microanalysis, H, C and P NMR spectroscopies, as appropriate. The compounds were applied as catalysts in the Suzuki-Miyaura coupling reaction in aqueous and semi-aqueous media.

摘要

用醋酸钯(II)在醋酸中处理亚胺,得到μ-醋酸二核配合物,它们很容易与氯化钠或溴化钠反应,提供μ-卤化物类似物。后者与氮、磷和氧给体亲核试剂反应,在 PdX 单元断裂后生成新的亚胺钯环。这些配合物通过微量分析、H、C 和 P NMR 光谱学进行了充分的表征。这些化合物被用作水相和半水相介质中的 Suzuki-Miyaura 偶联反应的催化剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/7cd747f6d0ea/molecules-27-03146-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/684d2702cb36/molecules-27-03146-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/f4652d1a14d3/molecules-27-03146-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/7cd747f6d0ea/molecules-27-03146-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/684d2702cb36/molecules-27-03146-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/f4652d1a14d3/molecules-27-03146-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7c7f/9144456/7cd747f6d0ea/molecules-27-03146-g002.jpg

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本文引用的文献

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Dalton Trans. 2016 Nov 28;45(44):17598-17601. doi: 10.1039/c6dt03542f. Epub 2016 Oct 24.
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Development of a novel chiral palladacycle and its application in asymmetric hydrophosphination reaction.新型手性钯环的开发及其在手性膦氢化反应中的应用。
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Mild and general conditions for negishi cross-coupling enabled by the use of palladacycle precatalysts.
温和且通用的 Negishi 交叉偶联条件,可通过使用钯环预催化剂实现。
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Carbon-carbon bonding made easy.碳-碳键合变得容易。
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