Geometry Constrained N-(5,6,7-Trihydroquinolin-8-ylidene)arylaminopalladium Dichloride Complexes: Catalytic Behavior toward Methyl Acrylate (MA), Methyl Acrylate-co-Norbornene (MA-co-NB) Polymerization and Heck Coupling

Zeng, Yanning; Mahmood, Qaiser; Liang, Tongling; Sun, Wen‐Hua

doi:10.3390/molecules21121686

Cited by 11 publications

(1 citation statement)

References 68 publications

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“…The nickel complexes mentioned above were synthesized by a “one‐pot” method described thoroughly in the literature (Scheme 1). [ 9b,d,15 ] The products were characterized by FT‐IR as well as elemental analysis. The FT‐IR spectra of Ni1–Ni10 exhibit the C═N stretching bands at 1,615–1,610 cm −1 , red‐shifted with respect to the typical C═N of the free imine (usually 1,640 cm −1 ), indicating coordination to the metal center.…”

Section: Resultsmentioning

confidence: 99%

Nickel(II) complexes with sterically hindered 5,6,7‐trihydroquinoline derivatives selectively dimerizing ethylene to 1‐butene

Lin

Liu

Lei

et al. 2022

Applied Organom Chemis

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A series of nickel complexes bearing N,N‐bidentate ligands has been synthesized and characterized by elemental analysis and infrared (IR) spectroscopy. High ethylene dimerization activity, reaching 2.43 × 106 g mol−1(Ni)h−1, was achieved by using these complexes as precatalysts activated with Me2AlCl. Moreover, the selectivity to obtain α‐C4 was high (93%–96%). Comparing with the previous report by our group, the higher activity and selectivity may be attributed to the substituent at the 2‐position within the ligand, creating the steric hindrance around the metal atom.

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Section: Resultsmentioning

confidence: 99%

Nickel(II) complexes with sterically hindered 5,6,7‐trihydroquinoline derivatives selectively dimerizing ethylene to 1‐butene

Lin

Liu

Lei

et al. 2022

Applied Organom Chemis

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Sterically enhanced 2‐iminopyridylpalladium chlorides as recyclable ppm‐palladium catalyst for Suzuki–Miyaura coupling in aqueous solution

Lin

Zhang

et al. 2021

Applied Organom Chemis

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Sterically hindered 2-iminopyridine derivatives and their palladium chlorides complexes are designed and prepared, which efficiently promote the Suzuki-Miyaura coupling (SMC) reaction in aqueous solution. Besides the good to excellent yields and broad substrate scope, these catalysts can be reused for at least four new batches of the substrates. Spontaneous separation of coupling products in the aqueous reaction medium is the additional striking feature of this catalytic process. Furthermore, catalytic performance of palladium complexes bearing the azo-bridged phenyl groups was greatly influenced by the UV irradiation due to the cis/trans photoisomerization of azo unit of the catalysts. In conclusion, titled palladium complexes provide a green, sustainable, cost-effective, and convenient process to synthesize SMC products at multi-gram-scale reaction.

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Nickel‐ and Palladium‐Catalyzed Copolymerizations of Norbornene with Polar α‐Olefins

Li,

Fang,

Cai

et al. 2024

ChemCatChem

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Recent progress regarding the copolymerization of norbornene with various polar α‐olefins catalyzed by nickel and palladium catalysts is reviewed here with special attention paid to the diverse catalyst frameworks, polar monomer scopes as well as polymer microstructures. Both the influences of steric effect and electron property of ligand substituents and the type of polar monomers on the catalytic behaviors (activity, stability, polarity tolerance, etc.) and the polymer microstructures (molecular weight and distribution, comonomer contents, etc.) have been summarized. The introduction of noncyclic‐olefins, such as polar vinyl monomers, polar higher α‐olefins, and polar styrenes, into rigid cyclic‐based polynorbornene chain resulted in significant modifications on the polarity, compatibility, thermostability, processibility, transparency, and many other properties of the material, which has also been discussed in the review. The contents of this review have been classified according to the type of polar monomers involved in the norbornene copolymerization, and each section included nickel and palladium catalysts bearing different ligand structures, which will be meaningful for the development of new types of catalysts and new families of norbornene‐based cyclic olefin copolymer materials in the future.

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Geometry Constrained N-(5,6,7-Trihydroquinolin-8-ylidene)arylaminopalladium Dichloride Complexes: Catalytic Behavior toward Methyl Acrylate (MA), Methyl Acrylate-co-Norbornene (MA-co-NB) Polymerization and Heck Coupling

Cited by 11 publications

References 68 publications

Nickel(II) complexes with sterically hindered 5,6,7‐trihydroquinoline derivatives selectively dimerizing ethylene to 1‐butene

Nickel(II) complexes with sterically hindered 5,6,7‐trihydroquinoline derivatives selectively dimerizing ethylene to 1‐butene

Sterically enhanced 2‐iminopyridylpalladium chlorides as recyclable ppm‐palladium catalyst for Suzuki–Miyaura coupling in aqueous solution

Nickel‐ and Palladium‐Catalyzed Copolymerizations of Norbornene with Polar α‐Olefins

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