36242-53-2

Upstream product

• 98447-30-4 2-bromo-4-methoxy-1-nitrobenzene 
• 62-53-3 aniline 
• 28987-59-9 3-chloro-4-nitroanisole 
• 108805-66-9 3-methoxy-N-nitrosodiphenylamine 
• 108-86-1 bromobenzene 
• 16133-49-6 5-methoxy-2-nitroaniline 
• 591-50-4 iodobenzene 
• 108805-69-2 5-methoxy-2-nitroso-N-phenylaniline 

Downstream Products

• 22316-48-9 N-carbethoxy acetyl 2-nitro 5-methoxy diphenylamine 
• 82582-23-8 4-methoxy-N²-phenylbenzene-1,2-diamine 

Relevant academic research and scientific papers

Ni-Catalyzed Dual C-H Annulation of Benzimidazoles with Alkynes for Synthesis of π-Extended Heteroarenes

Transition metal catalyzed dual C-H activation and annulation with alkynes was an attractive protocol to construct polycyclic π-extended structures. However, most of them were dominated by noble metal catalysts. Disclosed herein was the study of base-metal Ni-catalysis for dual C-H annulation of N-aromatic imidazole, which produced a range of desired polycyclic aza-quinolines in 48-95% yields. The use of bifunctional phosphine oxide ligand proved to be critical for success.

Light-emitting copper compound based on benzimidazole bidentate ligand and preparation method thereof

The invention belongs to the technical field of organic complex synthesis, and particularly relates to a photoluminescence copper compound based on a benzimidazole bidentate ligand and a preparation method of the photoluminescence copper compound. The molecular formula of the photoluminescence copper compound based on the benzimidazole bidentate ligand is C110H88N6O2P4S2Cu2, and the structural formula of the photoluminescence copper compound based on the benzimidazole bidentate ligand is shown as a formula I in the specification. A ligand L, triphenylphosphine and 4-pyridinethiol directly react with tetrakis(acetonitrile)copper(I) hexafluorophosphate at room temperature to obtain the photoluminescence copper compound based on the benzimidazole bidentate ligand. The preparation method is simple, the maximum excitation wavelength of the prepared product is 386 nm, the maximum emission wavelength of the prepared product is 598 nm, and the photoluminescence quantum efficiency at 293 K reaches 35.19%. The service lifetime of the product is 2.22 [mu]s, and the product is an efficient OLED luminescent material, and can be used in the field of OLED luminescent material preparation.

New Benzimidazole Synthesis

Thermal or acid catalyzed cyclization of several N-(N-arylbenzimidoyl)-1,4-benzoquinoneimines 2 affords 1-aryl-6-hydroxy-2-phenylbenzimidazoles 3 in fairly good yields.Structural proofs and kinetic support for the reaction mechanism are given.