60624-39-7Relevant articles and documents
Ionic liquid supported on magnetic nanoparticles as a novel reusable nanocatalyst for the efficient synthesis of tetracyclic quinazoline compounds
Ghorbani-Choghamarani, Arash,Taherinia, Zahra,Nikoorazm, Mohsen
, p. 6591 - 6604 (2018/07/03)
A magnetic ionic liquid supported on γ-Fe2O3 nanocatalyst was synthesized successfully and characterized by Fourier transform infrared spectroscopy, vibrating sample magnetometry, thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction and scanning electron microscopy. The resulting nano-Fe3O4-supported, ionic liquid was an efficient catalyst for preparation of a series of tetracyclic quinazoline compounds by three components reaction of a mixture of isatoic anhydride and amine with ninhydrin in PEG and the desired products were obtained in good to excellent yields. High efficiency, waste-free, mild reaction conditions, effortless magnetic recovery and reusability up to four continuous cycles are the noteworthy features of the currently employed heterogeneous catalytic system.
Montmorillonite K-10 catalysed solvent-free synthesis of 2,3-disubstituted-4(3H)quinazolinones under microwave irradiation
Dabiri,Salehi,Mohammadi, Ali A.,Baghbanzadeh,Kozehgiry, Gh.
, p. 570 - 572 (2007/10/03)
An efficient and rapid synthesis of 2,3-disubstituted-4(3H)quinazolinones by condensation of 2-aminobenzamide (substituted anthraniamides) with orthoesters in the presence of K-10 clay under solvent free conditions using microwave irradiation or classical heating is described.