31486-48-3

Upstream product

• 577-19-5 2-nitrophenyl bromide 
• 95-15-8 Benzo[b]thiophene 
• 6314-28-9 benzo[b]thiophene-2-carboxylic acid 
• 552-16-9 ortho-nitrobenzoic acid 
• 98437-23-1 benzo[b]thiophene-2-boronic acid 
• 609-73-4 o-nitroiodobenzene 

Relevant academic research and scientific papers

Method for synthesizing benzothiophene derivative by catalysis of dihalogenated aromatics by copper

The invention discloses a method for synthesizing a benzothiophene derivative by catalysis of dihalogenated aromatics by copper. According to the invention, a catalyst cuprous iodide with a catalysisamount, a ligand 8-hydroxyquinoline, an auxiliary catalyst cesium carbonate and 1-bromine-2-iodobenzene or its derivative, sulfur powder, and phenylacetylene or its derivative are added in a flask andsubjected to a reaction in pure water at certain temperature, after a certain time, vacuum concentration is carried out, and a product is purified through column chromatography. The method has the advantages of novel raw material and simple operation, and can be used for efficiently preparing the benzothiophene derivative. Compared with the prior art, the method has the advantages of mild reaction condition, simple operation, high yield, safety, low cost, and environmental protection.

Method for synthesizing benzothiophene derivatives from dihaloarene under microwave irradiation under catalysis of copper

The invention discloses a method for synthesizing benzothiophene derivatives from dihaloarene under microwave irradiation under the catalysis of copper. The method comprises the following steps: adding a catalytic amount of a catalyst copper chloride, a ligand 1,10-phenanthroline (1,10-Phen), a cocatalyst potassium hydroxide, 1-bromo-2-iodobenzene and its derivatives, KSCN (potassium thiocyanate),phenylacetylene and pure water, performing a reaction in a microwave reactor at a certain temperature under a certain power for a certain time, performing reduced pressure concentrating, and performing column chromatography purification on the obtained product. The method disclosed in the invention is a method having novel raw materials, being simple to operate and used for efficiently preparingthe benzothiophene derivatives. Compared with the prior art, the method has an obvious faster reaction speed than convectional heating, and has the advantages of mild reaction conditions, simplicity in operation, high yield, safety, low cost and environmental protection.

Synthesis and molecular properties of methoxy-substituted diindolo[3,2-: B:2′,3′- h] carbazoles for organic electronics obtained by a consecutive twofold Suzuki and twofold Cadogan reaction

A set of methoxy-substituted diindolo[3,2-b:2′,3′-h]carbazoles has been synthesized by twofold Suzuki-Miyaura, Cadogan and N-alkylation reactions starting from N-hexyl-2,7-dibromo-3,6-dinitro carbazole. Microwave accelerated reactions ensure a rapid strai

Copper mediated decarboxylative direct C-H arylation of heteroarenes with benzoic acids

Decarboxylative coupling reactions to date require a stoichiometric oxidant (such as copper and silver salts) for decarboxylation purposes along with a metal catalyst (e.g. palladium) for cross-coupling. In this communication, an economic and sustainable approach by using a simple copper salt was developed in the presence of molecular oxygen as the sole oxidant. A wide range of 5-membered heteroarenes undergo aryl-heteroaryl cross-coupling with electron deficient aryl carboxylic acids.

An organoelectro luminescent compounds and organoelectro luminescent device using the same

The present invention relates to an organic light emitting compound represented by chemical formula 1 or chemical formula 1-1, and to an organic electroluminescent device comprising the same. The organic electroluminescent device applying the organic ligh

An organoelectro luminescent compounds and organoelectro luminescent device using the same

The present invention relates to organic light emitting compounds represented by chemical formula 1-1 to chemical 1-4, and to an organic electroluminescent device comprising the same. an organic electroluminescent device applying the organic light emittin

A general Pd-catalyzed decarboxylative cross-coupling reaction between aryl carboxylic acids: Synthesis of biaryl compounds

Acid to acid: A general method has been developed for the synthesis of biaryl compounds through a decarboxylative cross-coupling reaction between two different (hetero)aryl carboxylic acids (see scheme). The use of a Pd II/PCy3 catalyst enables the cross-coupling reaction of electronically different or electronically similar aryl carboxylic acids. This method is compatible with substrates having nitro, cyano, fluoro, chloro, bromo, trifluoromethyl, and methoxy substituents. Copyright

Heck-like coupling and Pictet-Spengler reaction for the synthesis of benzothieno[3,2-c]quinolines

A series of 6-arylbenzothieno[3,2-c]quinolines were synthesised in three steps from benzo[b]thiophene. After a selective Heck-type coupling of benzo[b]thiophene with different o-nitroaryl bromides to obtain 2-(o-nitroaryl)benzo[b]thiophenes, corresponding

Derivatives of 1,2-dihydro-7-hydroxyquinolines containing fused rings

The present invention describes novel dyes, including coumarins, rhodamines, and rhodols that incorporate additional fused aromatic rings. The dyes of the invention absorb at a longer wavelength than structurally similar dyes that do not possess the fused aromatic rings. Many of the dyes of the invention are useful fluorescent dyes. The invention includes chemically reactive dyes, dye-conjugates, and the use of such dyes in staining samples and detecting ligands or other analytes.

PALLADIUM-CATALYZED ARYLATION OF FURAN, THIOPHENE, BENZOFURAN AND BENZOTHIOPHENE

Treatment of ?-electron sufficient aromatic heterocycles such as furan, thiophene, benzofuran and benzothiophene with aryl bromides in the presence of tetrakis(triphenyphosphine)palladium gave the corresponding 2-aryl aromatic heterocycles.