857203-59-9Relevant academic research and scientific papers
Oxidative Rearrangement of Isatins with Arylamines Using H2O2 as Oxidant: A Facile Synthesis of Quinazoline-2,4-diones and Evaluation of Their Antibacterial Activity
Shi, Guanghao,He, Xinwei,Shang, Yongjia,Yang, Cheng,Xiang, Liwei
, p. 1835 - 1843 (2017/09/06)
A green and highly efficient synthetic method for the synthesis of quinazoline-2,4-diones with hydrogen peroxide as the terminal oxidant has been developed. The reaction features the mild reaction conditions, broad substrate scope, metal-free catalysts, and sole byproduct water. A plausible mechanism for this process was proposed. Moreover, an antibacterial activity study was performed to evaluate the antimicrobial activities towards two Gram-negative bacterial strains (Escherichia coli, and Klebsiella pneumonia) and two Gram-positive bacterial strains (Staphylococcus epidermidis, and Staphylococcus aureus) using the Broth microdilution method.
One-pot synthesis of quinazoline-2,4(1H,3H)-diones and 2- thioxoquinazolinones with the aid of low-valent titanium reagent
Dou, Guo-Lan,Wang, Man-Man,Huang, Zhi-Bin,Shi, Da-Qing
experimental part, p. 645 - 649 (2009/11/30)
(Chemical Equation Presented) An efficient, convenient, one-pot synthesis of 2,4(1H,3H)-quinazolinediones and 2-thioxoquinazolinones was accomplished in good yields via the novel reductive cyclization of ethyl 2-nitrobenzoates with isocyanates or isothioc
