281661-73-2Relevant academic research and scientific papers
Synthesis of 4-arylquinazolines by arylation of quinazolin-4-ones under mild conditions
Qiu, Guanyinsheng,Huang, Ping,Yang, Qin,Lu, Hui,Xu, Jingshi,Deng, Zhihong,Zhang, Ming,Peng, Yiyuan
supporting information, p. 3131 - 3136 (2013/12/04)
An efficient route to 4-arylquinazolines via arylation of quinazolin-4-ones under mild condition is described. The reaction is carried out by the palladium-catalyzed coupling of quinazolin-4-ones with arylboronic acids in the presence of TsCl leading to 4-arylquinazolines in good to excellent yields. Georg Thieme Verlag Stuttgart New York.
Ring expansion of 2-alkylidenedihydroquinazolines to iminodihydro-1,4- benzodiazepines by methanesulfonyl and trifluoromethanesulfonyl azide
Quast, Helmut,Ivanova, Svetlana,Peters, Eva-Maria,Peters, Karl
, p. 1577 - 1587 (2007/10/03)
2-Alkyl-1-methylquinazolinium hexafluorophosphates 9 are deprotonated by sodium or potassium hydride to afford solutions of 2- alkylidenedihydroquinazolines 10, which were investigated by NMR spectroscopy. Trapping with methanesulfonyl azide (5a) of 10 in
