Aryl-based ferrocenyl phosphine ligands in the rhodium(I)-catalyzed hydroformylation of olefins

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• 作者：Martyna Madalska ; Peter L枚nnecke ; Evamarie Hey-Hawkins
• 关键词：Ferrocene ; Phosphines ; Hydroformylation ; Catalysis ; Rhodium
• 刊名：Journal of Molecular Catalysis A: Chemical
• 出版年：March, 2014
• 年：2014
• 卷：383-384
• 期：Complete
• 页码：137-142
• 全文大小：675 K

文摘

Ferrocenyl-based phosphine ligands [Fe{1-PPh₂(spacer)-2-NMe₂CH₂C₅H₃}(C₅H₅)] (spacer = 1,4-phenylene (rac-1), 1,3-phenylene (rac-2), 4,4鈥?biphenylene (rac-3), 2,5-thienylene (rac-4)) were applied in the rhodium(I)-catalyzed hydroformylation of various olefins (styrene, allylbenzene and 1-hexene) with higher chemo- and regioselectivity than a rhodium(I) catalyst precursor alone. The different 蟽-donor properties of rac-1-4 were elucidated by ³¹P{¹H} NMR spectroscopy of the corresponding selenides.