134859-18-0

Upstream product

• 57070-71-0 (3,4-diaminophenyl)phenylmethanone hydrochloride 
• 84-11-7 9,10-phenanthrenequinone 
• 33609-48-2 3,4-dinitrobenzophenone 
• 39070-63-8 4-benzoylbenzene-1,2-diamine 
• 82-86-0 acenaphthene quinone 
• 89-62-3 4-methyl-2-nitroaniline 
• 6971-33-1 4-methyl-2-nitro-1-nitrosobenzene 
• 610-39-9 3,4-Dinitrotoluene 
• 528-45-0 3,4-dinitrobenzoic acid 

Relevant academic research and scientific papers

Poly(N,N ′-dibromo-N-ethyl-benzene-1,3-disulphonamide) and N,N,N ′,N ′-tetrabromobenzene-1,3- disulphonamide as novel catalysts for synthesis of quinoxaline derivatives

Poly(N,N ′ -dibromo-N-ethyl-benzene-1,3-disulphonamide) [PBBS] and N,N,N ′,N ′ -tetrabromobenzene-1,3- disulphonamide [TBBDA] were used as efficient catalysts for the synthesis of quinoxaline derivatives in excellent yields from 1,2-diamines and 1,2-dicarbonyls under aqueous and solvent-free conditions. [Figure not available: see fulltext.]

A novel and simple synthesis of some new and known dibenzo phenazine and quinoxaline derivatives using lead dichloride

A simple method for the synthesis of phenazine and quinoxaline derivatives have been developed via a reaction of o-phenylenediamines and 1,2-dicarbonyl compounds or aryl glyoxals in the presence of lead dichloride in ethanol at room temperature. This meth

Zirconium triflate: An efficient catalyst for the synthesis of quinolines and quinoxalines

An environmentally friendly method is described for the preparation of substituted quinoline and quinoxaline derivatives using Zr(OTf)4 as an efficient catalyst. The method is based on using 1,3-diketones, ketones and 2-aminoaryl ketones under solvent-free conditions and also on using 1,2-diketone, 1,2-diamine in EtOH/H2O at room temperature for quinloine and quinoxaline synthesis, respectively. The advantages in using this method, include its environmental friendliness, simple operating process and good yields.

Graphite catalyzed green synthesis of quinoxalines

A new simple approach using environmentally benign, cheap, and easily recyclable graphite as a heterogeneous catalyst for the synthesis of quinoxalines is described. A library of pharmacologically interesting diphenylquinoxalines is prepared by the double condensation of substituted benzils, phenanthrene-9,10-dione, and benzoin with aromatic diamines in 71-93% yields at room temperature in ethanol. Aliphatic diamines gave corresponding dihydropyrazines from substituted benzils in 72-92% yields.

A modified synthesis of some novel polycyclic aromatic phenazines and quinoxalines by using the tungstate sulfuric acid (TSA) as a reusable catalyst under solvent-free conditions

Considering the synthesis of new compounds, we developed heterocyclic chemistry. We also helped to improve the classical synthetic route for the synthesis of quinoxalines and phenazines through implement in terms of solvent-free reaction. For the condensa

A Rapid Synthesis of Some 1,4-aryldiazines by the Use of Lithium Chloride as an Effective Catalyst

The synthesis of some 1,4-aryldiazines (novel and known dibenzo[a,c]phenazines and quinoxalines) based on the condensation of 1,2-aryldiamines with aromatic 1,2-dicarbonyl compounds in the presence of lithium chloride as a heterogeneous catalyst is presen

A facile synthesis of phenazine and quinoxaline derivatives using magnesium sulfate heptahydrate as a catalyst

Convenient and simple procedures for the synthesis of phenazine and quinoxaline derivatives were developed via a reaction of o-phenylenediamines and 1,2-dicarbonyl compounds. In addition, the synthesis of two new 1,4-benzodiazine derivatives and the catal

Synthesis of quinoxaline derivatives using TiO2 nanoparticles as an efficient and recyclable catalyst

TiO2 nanoparticles were synthesized and characterized by SEM and XRD techniques. The TiO2 nanoparticles were employed as a recyclable, inexpensive and efficient catalyst for the synthesis of substituted quinoxalines in high to excellent yields and in relatively short duration.

6-Lithioquinoxalines and Their Transformations

6-Bromo-2,3-diphenylquinoxaline reacts with butyllithium to give the 6-lithio derivative in a yield of more than 80%, which reacts with electrophiles such as benzophenone, Michler ketone, methyl ethyl ketone, iodine, selenium, and dimethylformamide to give the corresponding quinoxaline derivatives. 6-Bromo-2,3-dimethylquinoxaline is metallated with butyl- and phenyllithium at the methyl groups and benzene ring. These organolithium compounds react with benzophenone to give the corresponding diphenyl- and triaryl-carbinols, whose yield and ratio were determined by HPLC. These results open prospects for preparing new quinoxaline derivatives substituted at the annelated benzene ring.