674322-92-0

Upstream product

• 226071-21-2 N,N'-bis(bis(3,5-trifluoromethyl)phenyl)acenaphthenequinonediimine 
• 14567-23-8 trans-dichlorobis(dimethylsulfide)palladium(II) 
• 917-54-4 methyllithium 
• 674322-80-6 [Pd(CH₃)Cl(bis(3,5-(CH₃)2C₆H₃)acenaphthenequinonediimine)] 

Downstream Products

• 1019658-54-8 [PdCl(acetonitrile)(bis(3,5-(CF₃)2C₆H₃)acenaphthenequinonediimine)][PF₆] 

Relevant academic research and scientific papers

Palladium-Catalyzed Ethylene/Methyl Acrylate Cooligomerization: Effect of a New Nonsymmetric α-Diimine

A new nonsymmetric bis(aryl-imino)acenaphthene (Ar-BIAN) ligand, featured by a subtle steric and electronic unbalance of the N-donor atoms, is reported. With the new ligand and the corresponding symmetrically substituted derivatives, both neutral and monocationic Pd-CH3 compounds have been synthesized and characterized. The series of the monocationic complexes [Pd(CH3)(L)(Ar-BIAN)][PF6] (L=CH3CN, dmso) has been extended to dimethyl sulfoxide derivatives. The monocationic complexes are tested as precatalysts for the ethylene/methyl acrylate cooligomerization under mild reaction conditions of temperature and ethylene pressure. The catalytic product is a mixture of ethylene/acrylate cooligomers and higher alkenes. The catalysts containing the new nonsymmetric ligand are found to be more productive than those with the symmetric Ar-BIANs. The Pd-dmso catalysts are more productive and show a longer lifetime than their Pd-NCCH3 counterparts.

Subtle balance of steric and electronic effects for the synthesis of atactic polyketones catalyzed by Pd complexes with meta-substituted Aryl-BIAN ligands

Both symmetric and nonsymmetric bis(aryl)acenaphthenequinonediimine ligands, featured by substituents in meta-positions of the aryl rings, have been applied for the first time as ancillary ligands for the palladium-catalyzed CO/vinyl arene copolymerizatio

Synthesis and X-ray crystal structures of acenaphthenequinone-based α-diimine palladium complexes and a novel V-shape tripalladium cluster

Partially fluorinated 1,4-Diazadiene (α-Diimine) ligand 3,5-CF 3-BIAN (1) formed from 3,5-bis(trifluoromethyl)aniline and acenaphthenequinone was used in the synthesis of palladium dichlorido complex 2 and its mono methyl chlorido palladium complex 3. Both complexes as well as side products of the reaction with methyl lithium such as trans-bis(3,5- bis(trifluoromethyl)aniline complex 4 and an interesting mixed valent trinuclear V-shaped palladium cluster 5 with two bridging μ2, η3-N,CN′ non-innocent BIAN ligands were structurally characterized by the single-crystal XRD method.

Method of establishing the Lewis acidity of a metal fragment based on the relative binding strengths of Ar-BIAN ligands (Ar-BIAN = bis(aryl)acenaphthenequinonediimine)

The relative coordination strengths of a series of differently substituted Ar-BIAN ligands (Ar-BIAN = bis(aryl)acenaphthenequinonediimine) to a series of palladium complexes in both the formal 0 and 2 oxidation states have been determined. In all cases a good to excellent linearity of log Keq with respect to the Hammett σ constants of the substituents on the aryl fragments of the ligands was observed. The resulting ρ constant is proposed to be a good indication of the Lewis acidity of the metal fragment, a physical quantity for which experimental parameters have been determined only for a limited class of compounds. The obtained parameters allow a comparison not only of different olefin complexes among themselves but also with respect to different metal fragments such as Pd(OAc)2, Pd(Me)Cl, and a π-allyl complex. The Lewis acidity of the olefin complexes is extremely variable and ranges from the less acidic (Pd(Ar-BIAN)(DMFU); DMFU = dimethyl fumarate) to two of the most acidic (Pd(Ar-BIAN)(TCNE) and Pd(Ar-BIAN)(FN); TCNE = tetracyanoethylene, FN = fumarodinitrile) complexes among those examined. A cationic π-allyl complex has the highest Lewis acidity among the complexes examined. The importance of steric effects is examined in some cases.