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Cationic Palladium(II) Complexes of Phosphine-Sulfonamide Ligands: Synthesis, Characterization, and Catalytic Ethylene Oligomerization
Alternative Title膦、磺酰胺配体及其阳离子钯化合物合成, 表征及其催化乙烯齐聚研究
Zhang YL(张延路)1; Cao YC(曹艳春)1; Leng XB(冷雪冰)1; Chen CL(陈昶乐)1; Huang Z(黄正)1
2014
Source PublicationOrganometallics
Volume33Issue:14Pages:3738-3745
AbstractA series of cationic palladium(11) complexes bearing phosphine sulfonamide ligands, RP,O)PdMe(lutidine)][SbF6], were synthesized and used for catalytic ethylene oligomerization. The molecular structure of the complex {[N,N-dicyclohexyl-2-(diphenylphosphanyl)benzenesulfonamide]PdMe(lutidine)}[SbF6] shows that the phosphorus atom and the oxygen atom coordinate to the palladium center. The ethylene oligomerization behavior is greatly influenced by the phosphino substituents, while the substituents on sulfonamide show only minimal effects. Complexes containing the diphenylphosphanyl group are highly selective for ethylene dimerization, affording 1-butene exclusively with moderate activity. The bulkier bis(2-methoxyphenyl)phosphanyl group leads to higher activity and gives alpha-olefins containing mainly 1-butene and 1-hexene, with a 1-hexene content of up to 35%. The palladium complexes bearing alkyl phosphino substituents give 1-butene and 1-hexene as the major products; a small amount of 2-butene (<5%) was observed, suggesting the occurrence of chain walking. The addition of B(C6F5)(3) greatly enhances the catalytic activity. Experimental results suggest that the increase in activity is likely due to the abstraction of lutidine, not from the coordination of B(C6F5)(3) to the sulfonamide oxygen atom.
Subject Area金属有机化学
DOI10.1021/om5004094
URL查看原文
Indexed BySCI
Language英语
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Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sioc.ac.cn/handle/331003/39078
Collection金属有机化学国家重点实验室
Corresponding AuthorChen CL(陈昶乐); Huang Z(黄正)
Affiliation1.中科院上海有机化学研究所
2.中国科学技术大学
Recommended Citation
GB/T 7714
Zhang YL,Cao YC,Leng XB,et al. Cationic Palladium(II) Complexes of Phosphine-Sulfonamide Ligands: Synthesis, Characterization, and Catalytic Ethylene Oligomerization[J]. Organometallics,2014,33(14):3738-3745.
APA 张延路,曹艳春,冷雪冰,陈昶乐,&黄正.(2014).Cationic Palladium(II) Complexes of Phosphine-Sulfonamide Ligands: Synthesis, Characterization, and Catalytic Ethylene Oligomerization.Organometallics,33(14),3738-3745.
MLA 张延路,et al."Cationic Palladium(II) Complexes of Phosphine-Sulfonamide Ligands: Synthesis, Characterization, and Catalytic Ethylene Oligomerization".Organometallics 33.14(2014):3738-3745.
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