73565-10-3Relevant academic research and scientific papers
An Efficient One-Pot Multicomponent Synthesis of Tetracyclic Quinazolino[4,3- b ]quinazolines by Sequential C-N Bond Formation and Copper-Mediated Aerobic Oxidative Cyclization
Potuganti, Gal Reddy,Indukuri, Divakar Reddy,Alla, Manjula
supporting information, p. 1717 - 1722 (2018/05/28)
An efficient one-pot synthesis of quinazolino[4,3- b ]quinazoline derivatives has been accomplished, starting from 2-(2-bromophenyl)quinazolin-4(3 H)-one, aldehydes, and various nitrogen sources under aerobic conditions. The multicomponent protocol is med
Synthesis of some new 6-substituted quinazolino[4,3-b]qumazolin-8-ones under solvent-free conditions
Azizian, Jawad,Mohammadi, Ali A.,Karimi, Ali R.,Mohammadizadeh, Mohammad R.
, p. 435 - 437 (2007/10/03)
A facile and rapid synthesis of some new 6-substituted quinazolino[4,3-b] quinazolin-8-ones derivatives was investigated. The synthesis involved two-step condensation from isatoic anhydride. The products were obtained by condensation of 2-(o-aminophenyl)-
Synthetic applications of bis(iminophosphoranes) - Preparation of some derivatives of the 11H-quinazolino[2,3-b]- and quinazolino[4,3-b]quinazoline ring systems
Molina, Pedro,Conesa, Carlota,De Los Desamparados Velasco
, p. 107 - 110 (2007/10/03)
Aza Wittig reaction of bis(iminophosphorane) 3 with two equivalents of aryl isocyanates directly provided the bicyclic guanidines 4. However, 3 undergoes intramolecular aza Wittig reaction on thermal treatment to give the iminophosphorane 6 derived from the 2-(o-azidophenyl)-4(3H)-quinazolinone. Compound 6 reacts with isocyanates, acyl chlorides and carbon disulfide to yield quinazolino[4,3-b]quinazoline derivatives 8a-c, 9a-c, 10, and 11. VCH Verlagsgesellschaft mbH, 1997.
SYNTHESIS OF SOME NEW CHLORO DERIVATIVES OF QUINAZOLINOQUINAZOLIN-8-ONE AND s-TETRAZOLOQUINAZOLINE WITH EXPECTED ANTIFUNGICIDAL AND ANTIBACTERIAL ACTIVITIES
Abdel-Megeed, Mohamed F.,Yassin, S. M.,El-Shanshour, A. R.,El-Badawi, M.
, p. 189 - 197 (2007/10/02)
Some derivatives of 4-chloro-2-(phenyl or 4-chlorophenyl)-1,3-quinazoline have been prepared by treating the respective 4(3H) quinazolinone derivatives with POCl3/PCl5.The products were allowed to react with anthranilic, 5-chloro and 3,5-dichloroanthranil
Reaction of Benzylamine with o-Substituted Nitrobenzenes: Synthesis of Benzimidazole and Qiunazoline Derivatives
Rao, C. V. Chalapathi,Reddy, K. Kondal,Rao, N. V. Subba
, p. 655 - 658 (2007/10/02)
The utility of the reaction of benzylamine with o-substituted nitrobenzenes for the synthesis of heterocyclic compounds has been explored. 2-Substituted and 1,2-disubstituted benzimidazoles have been obtained by reacting o-nitroanilines and N-substituted o-nitroanilines with benzylamine.Two quinazolinone derivates and two tetracyclic compounds have also been prepared by the reaction of benzylamine with appropriate o-substituted nitrobenzenes.A suitable mechanism has been suggested for the formation of the products.
