(3+2) Annulation of Amidinothioureas with Binucleophile: Synthesis and Antimicrobial Activity of 3-Phenylamino-5-aryl/alkyl-1,2,4-oxadiazole Derivatives
作者:Swapnil G. Yerande、Amruta B. Ghaisas、Kiran M. Newase、Wei Wang、Kan Wang、Alexander Dömling
DOI:10.1002/jhet.1873
日期:2014.11
efficient method for preparation of 3‐phenylamino‐5‐aryl/alkyl‐1,2,4‐oxadiazole by (3+2) annulation of amidinothioureas with binucleophilic hydroxylamine hydrochloride in the presence of mercury (II) chloride. Desired 3‐phenylamino‐5‐aryl/alkyl‐1,2,4‐oxadiazole was prepared in good to moderate yields. On the basis of the literature precedence, the mechanism for the formation of 3‐phenylamino‐5‐aryl/alkyl‐1
在本文中,我们报告了在氯化汞(II)存在下,通过(3 + 2)氨基硫脲与双亲核羟胺盐酸盐环化(3 + 2)制备3-苯基氨基-5-芳基/烷基1,2,4-恶二唑的有效方法。所需的3-苯基氨基-5-芳基/烷基1,2,4-恶二唑的制备得率中等至中等。根据文献的优先次序,提出了3-苯基氨基-5-芳基/烷基1,2,4-恶二唑的形成机理。测试了合成的化合物的抗菌活性,并显示出对革兰氏阳性细菌(金黄色葡萄球菌)和真菌(白色念珠菌)的抑制作用。