30169-34-7

Upstream product

• 719-59-5 5-chloro-2-aminobenzophenone 
• 100-46-9 benzylamine 
• 100-52-7 benzaldehyde 
• 100-47-0 benzonitrile 
• 34918-76-8 N-(4-chlorophenyl)benzimidoyl chloride 
• 1609460-34-5 N-benzyl-N′-(4-chlorophenyl)benzimidamide 
• 1485-70-7 N-benzylbenzamide 
• 46721-83-9 N-(chloro(phenyl)methylene)(phenyl)methanamine 
• 7035-69-0 N-(4-chlorophenyl)benzamidine 
• 100-51-6 benzyl alcohol 
• 928782-97-2 4-chloro-2-(phenylethynyl)aniline 
• 106-47-8 4-chloro-aniline 
• 5922-60-1 2-amino-5-chlorobenzonitrile 
• 98-80-6 phenylboronic acid 

Relevant academic research and scientific papers

A convenient access to 2,4-disubstituted quinazolines via one-pot three-component reaction under mild conditions?

A new and practical method has been developed for the synthesis of 2,4-disubstituted quinolines via one-pot three-component reaction of o-amino arylketones, aldehydes and ammonium acetate in high yields by using DDQ in CH3CN under mild conditio

A new triazine-cored covalent organic polymer for catalytic applications

A triazine based covalent organic polymer (CC-TAPT-COP) was designed and synthesized via nucleophilic substitution reaction between 1,3,5-tris-(p-aminophenyl) triazine and cyanuric chloride under refluxing conditions with bottom-up approach. The structura

TMSOTf-catalyzed synthesis of substituted quinazolines using hexamethyldisilazane as a nitrogen source under neat and microwave irradiation conditions

In this article, we report an efficient and mild synthetic route for the construction of substituted quinazolines from functionalized 2-aminobenzophenones with various benzaldehydes usingcat. TMSOTf and hexamethyldisilazane (HMDS) under neat, metal-free and microwave irradiation conditions in which gaseous ammonia was formedin situ. This synthetic protocol provided the desired quinazolines with a broad substrate scope in good to excellent yields. Some structures were confirmed by X-ray single-crystal diffraction analysis.

Synthesis of quinazolines over recyclable Fe3O4@SiO2-PrNH2-Fe3+ nanoparticles: A green, efficient, and solvent-free protocol

A practical and efficient method is developed for efficient synthesis of quinazoline derivatives through condensation reaction of 2-aminoaryl ketone, an aldehyde, and ammonium acetate, over magnetic Fe3O4@SiO2-PrNH2/

Four-component quinazoline synthesis from simple anilines, aromatic aldehydes and ammonium iodide under metal-free conditions

A four-component procedure for the preparation of substituted quinazolines from anilines, aromatic aldehydes and ammonium iodide is described. The C-H bond ortho to the amino group in anilines was directly functionalized under metal-free conditions. Two a

Copper-Catalyzed Synthesis of Substituted Quinazolines from Benzonitriles and 2-Ethynylanilines via Carbon-Carbon Bond Cleavage Using Molecular Oxygen

A copper-catalyzed process for the synthesis of substituted quinazolines from benzonitriles and 2-ethynylanilines using molecular oxygen (O2) as sole oxidant is described. The mild catalytic system enabled the effective cleavage of the C-C triple bond and construction of new C-N and C-C bonds in one operation. Furthermore, the compound N,N-dimethyl-4-(2-(4-(trifluoromethyl)phenyl)quinazolin-4-yl)aniline (3dj) exhibited obvious aggregation-induced emission phenomenon, and the fluorescence quantum yield (ΦF,film) and lifetime (τfilm) were measured to be 45.5% and 5.8 ns in thin films state, respectively.

Palladium-Catalyzed Three-Component Tandem Process: One-Pot Assembly of Quinazolines

The first example of the palladium-catalyzed, three-component tandem reaction of 2-aminobenzonitriles, aldehydes, and arylboronic acids has been developed, providing a new approach for one-pot assembly of diverse quinazolines in moderate to good yields. A noteworthy feature of this method is the tolerance of bromo and iodo groups, which affords versatility for further synthetic manipulations. Preliminary mechanistic experiments indicate that this tandem process involves two possible mechanistic pathways for the formation of quinazolines via catalytic carbopalladation of the cyano group.

Ru(II)-Catalyzed C-H Activation and Annulation Reaction via Carbon-Carbon Triple Bond Cleavage

An unprecedented Ru(II)-catalyzed C-H activation and annulation reaction, which proceeds via C-C triple bond cleavage, is reported. This reaction of 2-phenyldihydrophthalazinediones with alkynes, which works most efficiently in the presence of bidented ligand 1,3-bis(diphenylphosphino)propane, affords good yields of substituted quinazolines.

Silver(II) oxide-mediated synthesis of 2,4-diarylquinazolines

A single-pot procedure for the synthesis of 2,4-diarylquinazolines is described which involves a silver oxide-mediated C–H activation/C–N bond formation process. The generality of this method with respect to substituent effects is presented along with studies leading to process optimization. Mechanistic investigations provide support for the involvement of radical intermediates in the reaction process.

Molecular Iodine Catalysed Benzylic sp 3 C-H Bond Amination for the Synthesis of 2-Arylquinazolines from 2-Aminobenzaldehydes, 2-Aminobenzophenones and 2-Aminobenzyl Alcohols

Molecular iodine catalysed benzylic sp 3 C-H bond amination has been developed for the synthesis of quinazolines from 2-aminobenzaldehydes and 2-aminobenzophenones with benzylamines. The use of oxygen as a green oxidant combined with the transition-metal-, additive- and solvent-free conditions makes the methodology economical and greener. The lack of aqueous work up also enhances the efficiency of this protocol. A series of 2-arylquinazolines was synthesised in good to excellent yields by using the developed protocol. 2-Aminobenzyl alcohols could also be employed to prepare the corresponding quinazoline derivatives.