Efficient microwave-assisted synthesis and antioxidant activity of 4-arylidene-2-phenyl-1H-imidazol-5(4H)-ones
摘要:
AbstractThe efficient synthesis of 4‐arylidene‐2‐phenyl‐1H‐imidazol‐5(4H)‐ones was achieved via microwave‐assisted reactions of 4‐arylmethylene‐2‐phenyloxazol‐5(4H)‐ones with urea in glycol. This approach provides a facile shortcut for the synthesis of this type of compounds with short reaction time, high yields, broad substrate scope and easy operation. Besides, the synthesized compounds were subject to the test of antioxidant activity, which is represented by their capacities for scavenging 1,1‐diphenyl‐2‐picrylhydrazyl, hydroxyl and superoxide anion free radicals. Bioassay of these compounds resulted in the finding of several 4‐arylidene‐2‐phenyl‐1H‐imidazol‐5(4H)‐ones with significant antioxidant activity. J. Heterocyclic Chem., (2012).
Highly Efficient Synthesis of Tricyclic Perimidines under Microwave Heating
作者:Wei-Jun Zhu、Jie Ding、Bo Jiang、Shu-Jiang Tu
DOI:10.1002/jhet.1057
日期:2013.2
A new and efficient access to (Z)-N-(2-argio-1-(1H-perimidin-2-yl)vinyl)benzamide derivatives from readily available substrates in HOAc is described with aid of microwave irradiation. The results of our study provide a simple, straightforward synthetic route to these interesting classes of 2-substitutedperimidines analogs in excellent yields.