138476-26-3

Upstream product

• 3457-46-3 4,4'-dichlorobenzil 
• 95-54-5 1,2-diamino-benzene 
• 104-88-1 4-chlorobenzaldehyde 
• 4254-20-0 4,4'-dichlorobenzoin 
• 3563-45-9 1,1,1,2-tetrachloro-2,2-bis-(4-chloro-phenyl)-ethane 
• 1073-67-2 4-vinylbenzyl chloride 
• 1820-42-4 bis(4-chlorophenyl)acetylene 
• 37580-81-7 1,2-bis(4-chlorophenyl)-1,2-ethandiol 
• 88-74-4 2-nitro-aniline 
• 23719-78-0 2,3-dibromo-quinoxaline 
• 1679-18-1 4-Chlorophenylboronic acid 

Relevant academic research and scientific papers

An efficient and recyclable nanoparticle-supported cobalt catalyst for quinoxaline synthesis

The syntheses of quinoxalines derived from 1,2-diamine and 1,2-dicarbonyl compounds under mild reaction conditions was carried out using a nanoparticle-supported cobalt catalyst. The supported nanocatalyst exhibited excellent activity and stability and it

ZnO-beta zeolite mediated simple and efficient method for the one-pot synthesis of quinoxaline derivatives at room temperature

A rapid and an efficient one-pot method for the synthesis of quinoxalines catalysed by ZnO-beta zeolite at room temperature is described. This environmentally benign method provides several advantages over methods that are currently employed such as a simple work-up, mild reaction conditions, good to excellent yields, and a process to recover and reuse the catalyst for several cycles with consistent activity. Versita Warsaw and Springer-Verlag Wien 2010.

An efficient and green procedure for the synthesis of quinoxaline derivatives using 3,5-bis(Trifluoromethyl)phenylammonium triflate (bfpat) organocatalyst

The application of 3,5-bis(trifluoromethyl)phenylammonium triflate (BFPAT) as a conven-ient new organocatalyst for the synthesis of quinoxaline derivatives is described. In the presence of BFPAT, one-pot synthesis of a wide variety of quinoxaline derivati

NaOH-Mediated Direct Synthesis of Quinoxalines from o-Nitroanilines and Alcohols via a Hydrogen-Transfer Strategy

A NaOH-mediated sustainable synthesis of functionalized quinoxalines is disclosed via redox condensation of o-nitroamines with diols and α-hydroxy ketones. Under optimized conditions, various o-nitroamines and alcohols are well tolerated to generate the desired products in 44-99% yields without transition metals and external redox additives.

Quinoxaline derivatives and application thereof in organic light-emitting devices

The present invention discloses a novel organic compound having a structure represented by the formula shown in the specification, wherein L1 and L2 are each independently selected from one of a single bond, a substituted or unsubstituted C6-C30 arylene group, and a substituted or unsubstituted C3-C30 heteroarylene group, wherein Ar1 is selected from one of substituted or unsubstituted C3-C30 heteroaryl groups containing at least two heteroatoms, and Ar2 is selected from one of substituted or unsubstituted C6-C30 aryl groups and substituted or unsubstituted C3-C30 heteroaryl groups. When the compound provided by the invention is used as a luminescent material in an OLED device, excellent device performance and stability are shown. The invention also discloses an organic light-emitting device adopting the compound with the general formula.

Dowex 50W: Mild efficient reusable heterogeneous catalyst for synthesis of quinoxaline derivatives in aqueous medium

An efficient, simple and eco-friendly procedure is reported in presence of heterogeneous Dowex 50W catalyst in aqueous medium under refluxing condition to produce quinoxaline derivatives. Catalyst has participated in condensation reaction between 1,2-diamines and various aromatic 1,2-diketones smoothly with excellent yield of the products in short reaction times. Dowex 50W was used more than five times in this reaction separately and showed an excellent recyclability throughout the reaction.(figure presented).

Synthesis method of quinoxaline heterocyclic derivative

The invention discloses a synthesis method of a quinoxaline heterocyclic derivative. An intermolecular redox reaction and a condensation cyclization reaction are carried out on an o-nitroaniline compound and an o-diol compound under the action of a water-soluble alkali to prepare the quinoxaline heterocyclic derivative in one step. Expensive transition metal catalysts and ligands do not need to beused, the water-soluble alkali is used as an accelerant and can be removed in a water washing manner, so that the product has no transition metal residue, the product is easy to separate, the recovery rate is high, and the method is simple in condition, easy to operate and low in equipment requirement; and the water-soluble alkali is used as the accelerant, so the unique byproduct is water, the atom economy is high, and the method has good research and industrial application prospects.

N-Bromosuccinimide-Mediated Synthesis of Substituted Quinoxalines

An efficient and simple N-bromosuccinimide-mediated two-step synthesis of substituted quinoxalines from 1,2-diarylacetylenes and 1,2-diaminobenzenes in boiling AcOH, during a one-pot procedure has been developed. All the structures of the substituted quinoxalines were confirmed, some by single-crystal X-ray crystallography. Possible reaction pathways were discussed, and some data were matched with the previous work.

Yb/NaY molecular sieve catalyst to catalyze the synthesis method for ensuring

The invention relates to a method for synthesizing a quinoxaline compound under catalysis of a Yb/NaY molecular sieve catalyst. The method specifically comprises the following steps of (a) mixing alpha-hydroxyketone, o-phenylenediamine, morpholine and the Yb/NaY molecular sieve catalyst, adding a solvent, and performing stirring and refluxing for 4 to 6 hours at 75 to 85 DEG C; (b) filtering the mixture obtained in the step (a), recycling a filter residue which is the Yb/NaY molecular sieve catalyst, and performing column chromatography separation on filtrate to obtain the quinoxaline compound. Compared with the prior art, a method for synthesizing the Yb/NaY molecular sieve catalyst is simple and metal load rate is high; the catalyst is high in thermal stability and easy to store and recycle; device characteristic detection shows that integrated molecular sieve pore passages and crystal structures of the catalyst are maintained; during condensation reaction between the alpha-hydroxyketone and the o-phenylenediamine under the catalysis of Yb/NaY, reaction conditions of are mild, simplicity in operation is ensured, the yield of a target product is 84 to 93 percent, and reduction in the cyclic catalysis efficiency of Yb/NaY is avoided.

Synthetic method of quinoxaline heterocyclic compound

The invention provides a synthetic method of a quinoxaline heterocyclic compound. A quinoxaline heterocyclic derivative is prepared through one step by carrying out oxidation and cyclic condensation reaction on benzoin and ortho-diamine under the catalysis of a non-transition metal catalyst. According to the method, low-price and easily-available benzoin is used as a raw material, a water-soluble non-transition metal is used as a catalyst and convenient, economical and safe air is used as a direct oxidant to synthesize a target heterocyclic compound through one step at room temperature or a temperature slightly higher than the room temperature; the reaction condition is simple and mild; and inert gas protection is not needed as the synthesis is carried out in the air. The method is easy to operate, the only byproduct is water, the product is simple and easy to separate and purify, the yield is high, and the reaction condition requirement is relatively low, so that the method is wide in application range and has good research and industrial application prospects.