490016-73-4

Basic information

• Product Name: 2-phenyl-4-[(2-phenylquinazolin-4-yl)sulfanyl]quinazoline
• Synonyms: 2-phenyl-4-[(2-phenylquinazolin-4-yl)sulfanyl]quinazoline
• CAS NO: 490016-73-4
• Molecular Formula: C28H18N4S
• Molecular Weight: 442.53432
• Mol File: 490016-73-4.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-phenyl-4-[(2-phenylquinazolin-4-yl)sulfanyl]quinazoline(CAS DataBase Reference)
• NIST Chemistry Reference: 2-phenyl-4-[(2-phenylquinazolin-4-yl)sulfanyl]quinazoline(490016-73-4)
• EPA Substance Registry System: 2-phenyl-4-[(2-phenylquinazolin-4-yl)sulfanyl]quinazoline(490016-73-4)

Safety Data

• Hazardous Substances Data: 490016-73-4(Hazardous Substances Data)

Upstream product

• 2454-39-9 2-aminobenzothioamide 
• 98-88-4 benzoyl chloride 
• 100698-06-4 2-mercapto-2-thioxo-2,3-dihydro-1H-2λ⁵-benzo[1,3,2]diazaphosphinine-4-thione pyridinium salt 
• 59525-06-3 2-benzoylaminothiobenzamide 

Relevant articles and documents

Synthesis of substituted 2-benzoylaminothiobenzamides and their ring closure to substituted 2-phenylquinazoline-4-thiones

Acylation of 2-aminothiobenzamide or 2-methylaminothiobenzamide with substituted benzoyl chlorides has been used to synthesise the corresponding 2-benzoyl-aminothiobenzamides whose subsequent sodium methoxide-catalysed ring closure gives the corresponding quinazoline-4-thiones. These compounds were characterised by means of their 1H- and 13C-NMR spectra. The preferred tautomeric form of selected compounds has been discussed on the basis of their 13C-NMR, IR and Raman spectra. It has been found that in the given medium 1-methyl-quinazoline-4-thiones undergo a replacement of the sulphur substituent by oxygen giving 1-methyl-quinazoline-4-ones. In strong acid media, 2-benzoylaminothiobenzamide is cyclised through its sulphur atom to give 2-phenylbenzo[d-1,3]thiazin-4-one.