Ferrocenylated imine- and amine(secondary/tertiary)- phosphine P^N ligands and their Pd(II) complexes: Synthesis and structural characterization
作者:Bertin Anzaldo、Claudia P. Villamizar C、Pankaj Sharma、René Gutiérrez、Alfredo R. Toscano、Ruben Gaviño
DOI:10.1016/j.jorganchem.2020.121577
日期:2020.12
substitution reaction of diphenylphosphino ethyl/propyl amine with [FcCH2NMe3+][I−] salt leads to tertiary-amine ligand [(η5-C5H5)Fe(η5-C5H4)CH2]2-N-(R-PPh2) where R= C2H4 (3) and C3H6 (4). The newly synthesized ferrocenylated ligands were then complexed with Pd(II) giving [cis(κ2-P^N)PdCl2] type complexes (5-8), where imine, secondary amine, and tertiary amine ligands act as a bidentate ligand. The molecular
合成了新的二茂铁基化的P ^ N配体家族,其中氮供体为亚胺或胺(仲/叔)。导致亚胺配体的形成二苯基膦基丙胺和二茂铁酰基之间的缩合反应[(η 5 -C 5 H ^ 5)的Fe (η 5 -C 5 H ^ 4)CH = N-(CH 2)3 -PPh 2) }](1),其在减少用NaBH 4,得到仲胺配体[(η 5 -C 5 H ^ 5)的Fe (η 5 -C 5 H ^ 4)CH 2-NH-(CH 2)3 -PPh 2)}](2)。另外,进行亲核取代反应二苯基膦基乙基/丙基胺与[FCCH 2 NME 3 + ] [I - ]盐导致叔胺配体[(η 5 -C 5 H ^ 5)的Fe(η 5 -C 5 H ^ 4) CH 2 ] 2 -N-(R-PPh 2),其中R = C 2 H 4(3)和C 3 H 6(4)。然后将新合成的二茂铁基化的配体与Pd(II)络合,得到[顺式(κ 2 -P ^ N)的PdCl