18600-54-9Relevant articles and documents
Design, synthesis and anticonvulsant evaluation of N-[(substituted 1H-pyrazol-3-yl)amino]-2-(4-methylphenyl)quinazolin-4(3H)-one derivatives
Kumar, Sachin,Jha,Tripathi, Rati K.P.,Yar, M. Shahar
, p. 1375 - 1379 (2017)
A series of quinazolinone derivatives (7a-7e) have been designed, synthesized and evaluated for the anticonvulsant activity using maximal electroshock seizure (MES) model. The compound 3-[(5-(4-chloro)phenyl-4,5-dihydro-1H-pyrazol-3-yl)amino]-2-(4-methylphenyl)quinazolin-4(3H)-one (7c) was found to be most active compound showing 85.23 % protection and was found to be nonneurotoxic up to 4 h. This study indicates that the quinazolinone based derivatives could be further exploited for the discovery of newer and more effective anticonvulsant agents.
Recyclable Heterogeneous Palladium-Catalyzed Carbonylative Cyclization of 2-Iodoanilines with Aryl Iodides Leading to 2-Arylbenzoxazinones
Cai, Mingzhong,Huang, Bin,Xu, Zhaotao,Zhou, Zebiao
, p. 581 - 590 (2020/02/13)
A highly efficient and practical heterogeneous palladium-catalyzed carbonylative coupling of 2-iodoanilines with aryl iodides has been developed. The reaction occurs smoothly in toluene at 110 °C with N, N -diisopropylethylamine as base under carbon monoxide (5 bar) and offers a general and powerful tool for the construction of various valuable 2-arylbenzoxazinones with excellent atom-economy, high functional group tolerance, good to high yields, and easy recyclability of the palladium catalyst. The reaction is the first example of heterogeneous palladium-catalyzed carbonylative coupling for the preparation of diverse 2-arylbenzoxazinones from commercially easily available 2-iodoanilines and aryl iodides.
Palladium (0)-catalyzed C(sp2)-H oxygenation with carboxylic acids
Gong, Ai-Jun,Li, Xu-Qin,Vu, Huu-Manh,Yong, Jia-Yuan
supporting information, (2020/02/15)
Palladium (0)-catalyzed Ortho-benzoxylation of the sp2 C–H bond of arylbenzoxazinones with carboxylic acid is reported. With benzoxazinone as directing group, the reaction went smoothly under the benign condition and gave the desired product wi