14505-32-9

Usage

Uses

Used in Pharmaceutical Industry:
3-methyl-2-(phenylamino)quinazolin-4(3H)-one is used as a valuable intermediate for the synthesis of various bioactive compounds. Its unique structural properties make it a promising candidate for the development of new pharmaceuticals.
Used in Drug Discovery and Development:
Due to its potential biological activities, 3-methyl-2-(phenylamino)quinazolin-4(3H)-one may be beneficial for the treatment of certain diseases and conditions. It can be utilized in drug discovery and development processes to identify and create new therapeutic agents.

Upstream product

• 32709-38-9 N-Methyl-o-azido-benzamid 
• 125728-76-9 1-{4-[(Z)-Methylimino]-4H-benzo[d][1,3]oxazin-2-yl}-1,3-diphenyl-urea 
• 118988-18-4 N-methyl o-(triphenylphosphoranylidene)amino benzamide 
• 103-71-9 phenyl isocyanate 

Relevant academic research and scientific papers

NEW METHODOLOGY FOR THE PREPARATIONOF QUINAZOLINE DERIVATIVES VIA TANDEM AZA-WITTIG/HETEROCUMULENE-MEDIATED ANNULATION. SYNTHESIS OF 4(3H)QUINAZOLINONES, BENZIMIDAZOQUINAZOLINES, QUINAZOLINOQUINAZOLINES AND BENZOTHIAZOLOQUINAZOLINES.

The aza-Wittig reaction of iminophosphoranes derived from N-substituted o-azidobenzamides, 2-(o-azidophenyl)-benzimidazole, -benzothiazole or -3,1-benzoxazin-4-one with heterocumulenes leads to functionalized quinazolines.Iminophosphoranes 9, derived from N-substituted o-azidobenzamides, react under mild conditions with isocyanates to form 4H-3,1-benzoxazine-4-imines 11 which are converted into 2-substituted-4(3H)-quinazolinones 12.Iminophosphoranes 9 also react with carbon disulfide and carbon dioxide to give the quinazolinones 13 and 14 respectively.Iminophosphorane 26, derived from 2-(o-azidophenyl)benzimidazole, reacts with isocyanates, carbon disulfide and carbon dioxide to form 6-substituted benzimidazoquinazolines 27, 28, and 29 respectively.In benzene at room temperature, iminophosphorane 31, reacts with isocyanates yielding quinazolinoquinazolines 34.Compounds 34 can also be prepared from iminophosphorane 36 and isocyanates.Iminophosphorane 40 derived from 2-(o-azidophenyl)benzothiazole reacts with aliphatic and aromatic isocyanates or isothiocyanates to give 7H-benzothiazoloquinazoline-7-imines 42.Iminophosphorane 40 also reacts with carbon dioxide or carbon disulfide to afford the corresponding isocyanate 43 or isothiocyanate 44, The molecular structures of 11d and 42a have been determined by X-ray diffraction methods.