Synthesis of 2,4-dihydro-3H-1,2,4-triazol-3-ylidene derivatives from 1,3-Indanediones
作者:Nagaraju Payili、Santhosh Reddy Rekula、Challa Gangu Naidu、Satyanarayana Yennam
DOI:10.1016/j.tetlet.2021.152832
日期:2021.3
and efficient synthesis has been developed for 1,2,4-traizole derivatives from 2-arylidene-1,3-indandiones and 1-methylhydrazine-1-carbonitrile in two steps with good yields. The reactions include formal [3 + 2] cycloaddition and skeletal rearrangement to provide amino hydrazones followed by T3P mediated dehydrogenative coupling. This method provides a new and useful strategy for synthesis of novel 1
已经开发了一种简单有效的合成方法,可分两步以良好的收率合成2-芳基-1,3-茚满二酮和1-甲基肼-1-甲腈中的1,2,4-三唑衍生物。反应包括正式的[3 + 2]环加成反应和骨架重排,以提供氨基,然后进行T3P介导的脱氢偶联。该方法为合成新型1,2,4-三唑衍生物提供了一种新的有用的策略。