1287682-36-3

Upstream product

• 52670-38-9 2-ethynylaniline 
• 32366-25-9 1-azidoethylbenzene 

Downstream Products

• 1287682-26-1 C₁₈H₁₈N₄O 

Relevant academic research and scientific papers

Cationic and neutral (Ar-BIAN)copper(I) complexes containing phosphane and arsane ancillary ligands: Synthesis, molecular structure and catalytic behaviour in cycloaddition reactions of azides and alkynes

A series of new cationic and neutral (Ar-BIAN)copper(I) complexes [in which Ar-BIAN = bis(aryl)acenaphthenequinonediimine] was synthesised and characterised by elemental analysis, 1D and 2D NMR spectroscopy and single-crystal X-ray diffraction. The cation

New tetradentate N,N,N,N-chelating α-diimine ligands and their corresponding zinc and nickel complexes: Synthesis, characterisation and testing as olefin polymerisation catalysts

A series of zinc complexes of the general formula {[ZnCl(ArNC(An)-C(An)NAr) ]+}2[Zn2Cl6]2- (where Ar = 2-(1-benzyl-1H-1,2,3-triazol-4-yl)phenyl 2a, 2-(1-(1-phenylethyl)-1H-1,2,3- triazol-4-yl)phenyl 2b, 2-(1-phenyl-1H-1,2,3-triazol-4-yl)phenyl 2c; An = acenaphthene backbone) were prepared by the condensation of acenaphthenequinone with the corresponding o-triazolyl-substituted anilines (2-(1-benzyl-1H-1,2,3- triazol-4-yl)aniline 1a, 2-(1-(1-phenylethyl)-1H-1,2,3-triazol-4-yl)aniline 1b, 2-(1-phenyl-1H-1,2,3-triazol-4-yl)aniline 1c) which were formed by the copper(i)-catalyzed Huisgen[3+2] dipolar cycloaddition between 2-ethynylaniline and the corresponding azides in high yields, using anhydrous ZnCl2 as the metal template, in boiling glacial acetic acid. Zinc complexes of the type [ZnCl(ArNC(An)-C(An)NAr)]+[ZnCl3(NCCH3)] - (4a-c) were synthesized by crystallisation of the corresponding complexes 2a-c in acetonitrile, at -20 °C. After removal of zinc dichloride from complexes 2a-c by the addition of potassium oxalate, in dichloromethane, the tetradentate N,N,N,N-chelating α-diimine ligands of the type ArNC(An)-C(An)NAr (5a-c) were obtained. The new ligand precursors and zinc complexes were characterised by elemental analysis, 1H and 13C{1H} NMR spectroscopy, two-dimensional NMR spectroscopy, and X-ray diffraction. Reaction of the ligand precursors 5a-c with [NiBr2(DME)], in dichloromethane, gave nickel complexes of the type [NiBr2(ArNC(An)-C(An)NAr)] (6a-c). The results of single crystal X-ray diffraction characterisation and magnetic susceptibility measurements demonstrated that nickel complexes 6a-c possess octahedral geometries around the nickel atoms with variable configurations, the Br atoms of which can be ionized when dissolved in methanol. In preliminary catalytic tests, complexes 6a-c revealed to be active as catalysts for the polymerisation of norbornene and styrene, when activated by cocatalyst MAO. The characterisation of the polymers by 1H and 13C{1H} NMR spectroscopy, gel permeation chromatography/size-exclusion chromatography (GPC/SEC) revealed that these polymers were formed by a coordination addition mechanism.