Palladium(II) Complexes with N,N′‐Bidentate N‐Methyl‐N‐(pyridin‐2‐ylmethyl)aniline and its Derivatives: Synthesis, Characterization, and Methyl Methacrylate Polymerization
摘要:
N,N′-二叉[(
N
,
N
′)
PdCl2
]复合物[即[.
L
n
PdCl2
] (L
n
= L1-L5
)] 的反应合成了[Pd(
CH3CN
)
2Cl2
]与 N-甲基-N-(吡啶-2-基甲基)苯胺 (
L1
) 及其衍生物 (
L2-L5
) 在乙醇中的分子结构。的分子结构。
L
n
PdCl2
] (L
n
= L1-L3
利用 X 射线晶体学对其进行了表征,结果表明,Pd(II) 复合物中的钯原子具有涉及 N,N′-二同位的两个氮原子和两个酰氯配体的正方形平面几何结构。配合物[...
L
n
PdCl2
] (L
n
= L1-L5
)在 60 °C、改性甲基铝氧烷(MMAO)存在下进行甲基丙烯酸甲酯(MMA)聚合反应的研究。具体来说,复合物 [
L1PdCl2
]对 MMA 聚合具有中等催化活性,活性为 3.03 × 104 g 聚甲基丙烯酸甲酯 (PMMA)/molPd-h,PMMA 的联合活性(通过
1H NMR 光谱)为 ~0.68。
Phosphine-Free Well-Defined Mn(I) Complex-Catalyzed Synthesis of Amine, Imine, and 2,3-Dihydro-1<i>H</i>-perimidine via Hydrogen Autotransfer or Acceptorless Dehydrogenative Coupling of Amine and Alcohol
report the synthesis of amines/imines directly from alcohol and amines via hydrogen autotransfer or acceptorless dehydrogenation catalyzed by well-defined phosphine-free Mn complexes. Both imines and amines can be obtained from the same set of alcohols and amines using the same catalyst, only by tuning the reaction conditions. The amount and nature of the base are found to be a highly important aspect for
applied for the reductiveamination of aldehydes and ketones with nitroaromatics and amines using H2. The iridium catalysts were prepared by pyrolysis of ionic liquid 1‐methyl‐3‐cyanomethylimidazoulium chloride ([MCNI]Cl) with iridium chloride (IrCl3) in activatedcarbons. Iridium particles were well dispersed and stable in the N‐doped carbon materials from [MCNI]Cl with activatedcarbon. The Ir@NC(600‐2h)
Experimental and mechanistic insights into copper(<scp>ii</scp>)–dioxygen catalyzed oxidative N-dealkylation of N-(2-pyridylmethyl)phenylamine and its derivatives
supported Cu(II)/O2 catalyticsystem was explored with the synthesis of pyridylmethyl-based compounds of carboxylate (PyCOOH), amide (PyC(O)NHPh), and imine (PyCHNPh) from the oxidative N-dealkylation of N-(2-pyridylmethyl)phenylamine (PyCH2NHPh) and its derivatives, by means of controlling the addition of a base and/or water to the reaction system under a dioxygen atmosphere at roomtemperature. Experimental
Heterogeneous Co@NC catalysts were prepared, characterized and applied for the reductive amination of aldehydes and ketones with H2 gas. The Co catalyst Co@NC (800-2h) was found to be active and...