Mild intramolecular P–C(sp3) bond cleavage in bridging diphosphine complexes of RuII RhIII and IrIII
作者:Peter De'Ath、Mark R.J. Elsegood、Christopher A.G. Halliwell、Martin B. Smith
DOI:10.1016/j.jorganchem.2021.121704
日期:2021.4
PhL1, PhL2, and PhL4, and [RuCl(μ-Cl)(η6-Me2CHC6H4Me)]2 in CH2Cl2 affords the P/P-bridging dinuclear ruthenium(II) complexes RuCl2(η6-Me2CHC6H4Me)}2(μ-CyL1−PhL4) 1a−f as red/orange solids. Careful monitoring by 31P1H} NMR spectroscopy of CDCl3 solutions of 1a−e revealed remarkably clean P−Csp3 bond cleavage to give RuII mononuclear species 2a−e and the known secondary phosphine complexes RuCl2(η6-Me2CHC6H4Me)(PCy2H)
三种新的羧酸官能化的二膦R 2 PCH 2 N(Ar)CH 2 PR 2 [ Cy L 1 R = Cy,Ar =(1-CO 2 H)(3-OMe)C 6 H 3,Cy L 2 R = Cy,Ar =(1-CO 2 H)(3-OH)C 6 H 3,Ph L 3 R = Ph,Ar =(1-CO 2 H)(5-OMe)C 6 H 3 ]由R 2 PCH 2缩合制备OH和适当的芳族胺在MeOH中的溶液,并以良好收率分离为无色固体(对于Cy L 1,Cy L 2)。的反应赛扬大号1,赛扬大号2,或博士大号3,沿与先前报道的二膦博士大号1,博士大号2,和博士大号4,和将[RuCl(μ-Cl)的(η 6 -Me 2 CHC 6 H 4 Me)] 2 in CH 2 Cl 2,得到P / P-桥接的双核钌(II)络合物的RuCl 2(η 6 -Me 2 CHC 6 H ^ 4 Me)的} 2(μ-赛扬大号1
Neutral Molecular Pd<sub>6</sub> Hexagons Using κ<sup>3</sup>-<i>P</i><sub>2</sub><i>O</i>-Terdentate Ligands
作者:Mark R. J. Elsegood、Martin B. Smith、Paul M. Staniland
DOI:10.1021/ic060629o
日期:2006.8.1
Metathesis of 1 with NaX (X = Br, I) gave the corresponding (methyl)bromopalladium(II) (4) and (methyl)iodopalladium(II) (5) complexes, respectively. When chloroform or chloroform/methanol solutions of 1-3 (or 5) were allowed to stand, at ambient temperatures, yellow crystalline solids were isolated in very high yields (71-88%) and were analyzed for the novel hexameric palladium(II) compounds 6-9. All new
一步合成三个新的P2O叔羧酸二叔膦2-(Ph2PCH2)2N} -3-(X)C6H3CO2H(X = OCH3,L1; X = OH,L2)和2-(Ph2PCH2)据报道,使用Ph 2 PCH 2 OH和适当的胺在CH 3 OH中的基于磷的曼尼希缩合反应形成的2N} -5-(OH)C 6 H 3 CO 2 H(L3)。化合物L1-L3与Pd(CH3)Cl(cod)(cod =环辛基-1,5-二烯)络合后,作为典型的kappa2-P2-配体起作用,得到中性的单核络合物Pd(CH3)Cl(L1- L3)(1-3)。1与NaX(X = Br,I)复分解分别得到相应的(甲基)溴钯(II)(4)和(甲基)碘钯(II)(5)配合物。当在室温下静置1-3(或5)的氯仿或氯仿/甲醇溶液时,分离出黄色结晶固体,收率很高(71-88%),并分析了新型六聚钯(II)化合物6-9。所报告的所有新化合物均已通过