One‐Pot Synthesis of Mono‐ and Disubstituted (3<i>H</i>)‐Quinazolin‐4‐ones in Dry Media Under Microwave Irradiation
作者:Minoo Dabiri、Peyman Salehi、Ali A. Mohammadi、Mostafa Baghbanzadeh
DOI:10.1081/scc-200048462
日期:2005.1
supported on silica gel is an efficient medium for one‐pot synthesis of (3H)‐quinazolin‐4‐ones in the absence of solvent undermicrowaveirradiation or classicalheating. The reaction of orthoesters with 2‐aminobenzamides ends up with the formation of monosubstituted (3H)‐quinazolin‐4‐ones. One‐pot synthesis of disubstituted (3H)‐quinazolin‐4‐ones is also achieved by the reaction of isatoic anhydride
A new approach to the facile synthesis of mono- and disubstituted quinazolin-4(3H)-ones under solvent-free conditions
作者:Peyman Salehi、Minoo Dabiri、Mohammad Ali Zolfigol、Mostafa Baghbanzadeh
DOI:10.1016/j.tetlet.2005.08.043
日期:2005.10
Quinazolin-4(3H)-one derivatives were synthesized successfully via a one-pot, three component reaction of isatoic anhydride and an orthoester with ammoniumacetate or a primary amine catalyzed by silica sulfuric acid under solvent-free conditions. This is the first report on the synthesis of 2-substituted quinazolin-4(3H)-ones by this procedure.