490022-24-7

Upstream product

• 24544-04-5 2,6-diisopropylbenzenamine 
• 431-03-8 dimethylglyoxal 

Relevant academic research and scientific papers

Synthesis and structures of mono- A nd di-nuclear aluminium and zinc complexes bearing α-diimine and related ligands, and their use in the ring opening polymerization of cyclic esters

A series of organoaluminium imino-amido complexes of the type {[ArNC(Me2)C(Me)NAr]AlMe2} (Ar = 2,6-iPr2C6H3 (1), Ar = 2,6-Et2C6H3 (2); Ar = 2,6-Me2C6H3 (3) have been prepared via reaction of AlR3 and the respective α-diimine. Similar reaction of the bis(α

Multicomponent Synthesis of Unsymmetrical 4,5-Disubstituted Imidazolium Salts as N-Heterocyclic Carbene Precursors: Applications in Palladium-Catalyzed Cross-Coupling Reactions

Various novel (a)chiral 4,5-disubstituted 1-aryl-3-alkyl-imidazolium salts were synthesized via the multicomponent reaction of diketone derivatives, sterically congested arylamines, and alkylamines. Moreover, two novel unsymmetrical bulky cycloalkyl-based NHC-Pd complexes proved highly active as catalysts for Suzuki-Miyaura and Negishi cross-coupling reactions.

Mono- and binuclear nickel catalysts for 1-hexene polymerization

Polymerization of 1-hexene was carried out using a mononuclear (MN) catalyst and two binuclear (BN1 and BN2) α-diimine Ni-based catalysts synthesized under controlled conditions. Ethylaluminium sesquichloride (EASC) was used as an ef

Synthesis, characterization, and crystal structure of novel bulky phenyl-bridged α-diimine binucleating ligands

A series of sterically and electronically modulated phenyl-bridged α-diimine ligands L1-L6 of the general formula Ar-N= C(Me)-C( Me)=N-C6H4- N= C(Me)-C( Me)=N-Ar have been synthesized (L1 : Ar = 2,6-iPr2- C6Hsu

Polymerization of ethylene using a series of binuclear and a mononuclear Ni (II)-based catalysts

A novel series of homo-, bi-, and mononuclear Ni(II)-based catalysts (BNCn n = 1–4, MNC4) were used for ethylene polymerization. The optimum conditions for the catalyst BNC4 (the highest catalytic activity) was obtained at

Synthesis, characterization and ethylene oligomerization studies of nickel complexes bearing novel bis-α-diimine ligands

Sterically modulated, diazine bridged bis-α-diimine Ni(II) complexes have been synthesized to provide a versatile set of catalytic systems for ethylene oligomerization in combination with methyl aluminoxane (MAO) as cocatalyst. All the dinickel catalysts

New polydentate ligands based on sterically hindered o-benzoquinones (pyrocatechols) containing the 1,4-diazadiene group

New bifunctional ligands containing the 1,4-diazadiene and 1,2-benzoquinone groups were synthesized by the reactions of 4-amino-3,6-di-tert- butylpyrocatechol with glyoxal and its derivatives. Their o-semiquinone complexes with transition and nontransition metals were studied in solution by the ESR method.

Novel imino-amide catalysts for olefin polymerization

The present invention provides a catalyst precursor, a catalyst system comprising the precursor, and a polymerization method using the catalyst system, an embodiment of the precursor is selected from the following structures: wherein T is a bridging group

Imino-amide catalyst compositions for the polymerization of olefins

The present invention provides a catalyst precursor and catalyst system comprising the precursor, an embodiment of the precursor is selected from the following structures: wherein T is a bridging group; M is selected from Groups 3 to 7 atoms, and the Lant