Arylation of Amines in Alkane Solvents by using Well-Defined Palladium-N-Heterocyclic Carbene Complexes
作者:Enrico Marelli、Anthony Chartoire、Gaetan Le Duc、Steven P. Nolan
DOI:10.1002/cctc.201500841
日期:2015.12
The use of the ITent‐based series of Pd‐N‐heterocyclic carbenes precatalysts (Tent= Tentacular) enables the Buchwald–Hartwig aminearylation reaction in apolar alkanesolvents. The use of such solvents is rare because of their poor solvation properties. Nonetheless, they could be of interest for industrial applications, as they can be disposed of in an energetically favorable manner and may potentially
An Efficient Palladium-NHC (NHC=N-Heterocyclic Carbene) and Aryl Amination Pre-Catalyst: [Pd(IPr*)(cinnamyl)Cl]
作者:Anthony Chartoire、Xavier Frogneux、Steven P. Nolan
DOI:10.1002/adsc.201200207
日期:2012.7.9
complex is reported as one of the best N‐heterocyclic carbene (NHC)‐based pre‐catalysts for the Buchwald–Hartwig amination reaction. This catalytic system displays high efficiency for the coupling of numerous (hetero)aryl chlorides, with a wide range of amines, at roomtemperature or at extremely lowcatalystloading (as low as 0.025 mol%).
[Pd(IPr*)(3-Cl-pyridinyl)Cl<sub>2</sub>]: A Novel and Efficient PEPPSI Precatalyst
作者:Anthony Chartoire、Xavier Frogneux、Arnaud Boreux、Alexandra M. Z. Slawin、Steven P. Nolan
DOI:10.1021/om300725f
日期:2012.10.8
well-defined [Pd(IPr*)(3-Cl-pyridinyl)Cl2] complex is described. The steric parameters of the ligand as well as its reactivity in the Buchwald–Hartwig amination were directly compared to other [Pd(NHC)(3-Cl-pyridinyl)Cl2] and [Pd(IPr*)(LX)Cl)] precatalysts (LX = cinnamyl or acac). The title complex exhibits similar catalytic activity to [Pd(NHC)(3-Cl-pyridinyl)Cl2] congeners (NHC = IPr and SIPr) at
Robust Acenaphthoimidazolylidene Palladacycles: Highly Efficient Catalysts for the Amination of N-Heteroaryl Chlorides
作者:Qinyue Deng、Yang Zhang、Haibo Zhu、Tao Tu
DOI:10.1002/asia.201700877
日期:2017.9.19
A series of robust N‐heterocyclic carbene palladacycles have been successfully developed. These showed high catalytic activity and selectivity toward the challenging amination of N‐heteroaryl chlorides. Different primary and secondary amines were fully compatible with this catalytic system. Remarkably, no double amination products could be detected when primary amines were utilized in our catalytic
Highly Active, Well-Defined (Cyclopentadiene)(N-heterocyclic carbene)palladium Chloride Complexes for Room-Temperature Suzuki-Miyaura and Buchwald-Hartwig Cross-Coupling Reactions of Aryl Chlorides and Deboronation Homocoupling of Arylboronic Acids
class of well‐defined N‐heterocyclic carbene (NHC)‐(cyclopentadiene)palladiumchloride complexes such as CpPd(NHC)Cl wasw synthesized from the readily available starting NHC‐palladium(II) chloride dimers. These air‐stable, coordinatively saturated NHC‐Pd complexes bearing the cyclopentadiene (Cp) unit exhibit high catalytic activity in the roomtemperatureSuzuki–Miyaura and Buchwald–Hartwig cross‐coupling