1402935-62-9

Upstream product

• 4848-43-5 (2-aminoethyl)diphenylphosphane 
• 13750-81-7 N-methyl-2-imidazolcarboxaldehyde 
• 85692-37-1 1-(1-methyl-1H-imidazol-2-yl)ethan-1-one 

Downstream Products

• 1403229-48-0 NiCl₂{2-(diphenylphosphino)-N-((1-methyl-1H-imidazol-2-yl)methylene)ethanamine} 

Relevant academic research and scientific papers

NNP-Type Pincer Imidazolylphosphine Ruthenium Complexes: Efficient Base-Free Hydrogenation of Aromatic and Aliphatic Nitriles under Mild Conditions

A series of seven novel NImNHP-type pincer imidazolylphosphine ruthenium complexes has been synthesized and fully characterized. The use of hydrogenation of benzonitrile as a benchmark test identified [RuHCl(CO)(NImNHPtBu)] as the most active catalyst. With its stable Ru-BH4 analogue, in which chloride is replaced by BH4, a broad range of (hetero)aromatic and aliphatic nitriles, including industrially interesting adiponitrile, has been hydrogenated under mild and base-free conditions.

NOVEL NICKEL-BASED CATALYTIC COMPOSITION AND METHOD OF OLIGOMERIZATION OF OLEFINS USING SAID COMPOSITION

The present invention describes a novel catalytic composition comprising at least one nickel complex, said complex being obtained from a mixture comprising at least one nickel precursor A with at least one imino-imidazole ligand B and a method of oligomerization of olefins using said catalytic composition.

Nickel(II) complexes with imino-imidazole chelating ligands bearing pendant donor groups (SR, OR, NR2, PR2) as precatalysts in ethylene oligomerization

New imino-imidazole ligands bearing a pendant donor function L were synthesized in excellent yields. The corresponding nickel(II) complexes [NiCl2(imino-imidazole-L)]n (L = (CH2) 2SMe (2a), (CH2)2OMe (2b), (CH 2)2NEt2 (2c), (CH2) 2PPh2 (2d), (C6H4)-p-OMe (2e), (CH2)3OMe (2f), (CH2)3CH3 (2g); n = 1, 2) were prepared and characterized by FT-IR spectroscopy and elemental analysis. Furthermore, the coordination geometry around the metal center in the dinuclear complex 2a and the mononuclear complexes 2c and 2e was unambiguously established by single crystal X-ray diffraction. All complexes have been evaluated for the oligomerization of ethylene in the presence of EtAlCl2 or MAO (methylaluminoxane) as cocatalyst, and mostly dimers and trimers were produced. Better activities were observed with EtAlCl 2 as cocatalyst than with MAO.