92104-30-8

Upstream product

• 201230-82-2 carbon monoxide 
• 873-38-1 4-chloro-2-bromoaniline 
• 62-53-3 aniline 
• 149-73-5 trimethyl orthoformate 
• 63069-48-7 p-chloro-o-iodoaniline 
• 68-12-2 N,N-dimethyl-formamide 
• 15949-49-2 2-amino-5-chloro-N-phenylbenzamide 
• 298-12-4 Glyoxilic acid 
• 1895-39-2 sodium chlorodifluoroacetate 
• 122-51-0 orthoformic acid triethyl ester 
• 635-21-2 5-chloroanthranilic acid 
• 17630-76-1 5-chloroindole 2,3-dione 
• 80-43-3 bis(1-methyl-1-phenylethyl)peroxide 
• 63007-54-5 N-(2-bromo-4-chlorophenyl)formamide 

Relevant academic research and scientific papers

N,N-Dimethylformamide as Carbon Synthons for the Synthesis ofN-Heterocycles: Pyrrolo/Indolo[1,2-a]quinoxalines and Quinazolin-4-ones

N,N-dimethylformamide (DMF) as synthetic precursors contributing especially the methyl, acyl, and amino groups has played a significant role in heterocycle syntheses and functionalization. In this protocol, a wide range of pyrrolo/indolo[1,2-a]quinoxalines and quinazolin-4-ones were obtained in moderate to good yields by using elemental iodine without any metal or peroxides. We considered thatN-methyl andN-acyl of DMF participate and complete the reaction separately through different mechanisms, which displayed potential still to be explored of DMF.

New Strategy for the Synthesis of Heterocycles via Copper-Catalyzed Oxidative Decarboxylative Amination of Glyoxylic Acid

A copper-catalyzed oxidative decarboxylative amination of glyoxylic acid with substrates having two nitrogen-nucleophilic sites was first demonstrated. Using this novel approach, 1,3,5-triazines, quinazolinones and quinazolines were obtained in up to 93 % yields. Notably, glyoxylic acid was employed as the C1 synthon for heterocycles. This strategy enriches the application of glyoxylic acid for the synthesis of valuable heterocycles.

Transition metal-free C-F/C-Cl/C-C cleavage of ClCF2COONa for the synthesis of heterocycles

A transition metal-free and external oxidant-free annulation of substrates having two nitrogen-nucleophilic sites with ClCF2COONa was demonstrated, affording a series of 1,3,5-triazines and quinazolinones in up to 96% yields. Notably, ClCF

Discovery of molluscicidal and cercaricidal activities of 3-substituted quinazolinone derivatives by a scaffold hopping approach using a pseudo-ring based on the intramolecular hydrogen bond formation

Discovery of novel topological agents against Oncomelania hupensis snails and cercariae remains a significant challenge in current Schistosomiasis control. A pseudo-ring formed from salicylanilide by an intramolecular hydrogen bond led to the discovery of 3-substituted quinazolinone derivatives which showed a potent molluscicidal and cercaricidal activities.

Pd/C as an efficient heterogeneous catalyst for carbonylative four-component synthesis of 4(3H)-quinazolinones

Quinazolinones are of interest in the fields of pharmaceuticals and medicinal chemistry. The application of palladium on activated charcoal (Pd/C) as a heterogeneous catalyst was investigated for the carbonylation of 2-iodoanilines with trimethyl orthofor

Copper-catalyzed radical methylation/C-H amination/oxidation cascade for the synthesis of quinazolinones

A copper-catalyzed radical methylation/sp3 C-H amination/oxidation reaction for the facile synthesis of quinazolinone was developed. In this cascade reaction, dicumyl peroxide acts not only as a useful oxidant but also as an efficient methyl source. Notably, a methyl radical, generated from peroxide, was confirmed by electron paramagnetic resonance for the first time.

A convenient palladium-catalyzed carbonylative synthesis of 4(3H)-quinazolinones from 2-bromoformanilides and organo nitros with Mo(CO) 6 as a multiple promoter

A novel and convenient procedure for the synthesis of quinazolinones has been developed. Using 2-bromoformanilides and organo nitros as substrates and Mo(CO)6 as a multiple promoter, the desired products were isolated in moderate to excellent yields in the presence of a palladium catalyst. Here, Mo(CO)6 was not only a CO source, but also a nitro compound reducing reagent and a cyclization promoter. This journal is the Partner Organisations 2014.

Metal-free oxidative synthesis of quinazolinones via dual amination of sp3 C-H bonds

A novel metal-free synthesis of quinazolinones via dual amination of sp3 C-H bonds was developed. The sp3 carbon in methylarenes or adjacent to a heteroatom in DMSO, DMF or DMA was used as the one carbon synthon. This journal is the Partner Organisations 2014.

Highly efficient four-component synthesis of 4(3H)-quinazolinones: Palladium-catalyzed carbonylative coupling reactions

Given the importance of quinazolinones and carbonylative transformations, a palladium-catalyzed fourcomponent carbonylative coupling system for the synthesis of diverse 4(3H)-quinazolinone in a concise and convergent fashion has been developed. Starting from 2-bromoanilines (1 mmol), trimethyl orthoformate (2 mmol), and amines (1.1 mmol), under 10 bar of CO, the desired products were isolated in good yields in the presence of Pd(OAc)2 (2 mol%), BuPAd2 (6 mol%) in 1,4-dioxane (2 mL) at 1008C, using N,Ndiisopropylethylamine (2 mmol) as the base. Notably, the process tolerates the presence of various reactive functional groups and is very selective for quinazolinones, and was used in the synthesis of the precursor to the bioactive dihydrorutaempine.