An one-pot approach to the synthesis of triazolobenzothiadiazepine 1,1-dioxide derivatives by basic alumina-supported azide–alkyne [3+2] cycloaddition
作者:K.C. Majumdar、Sintu Ganai、Biswajit Sinha
DOI:10.1016/j.tet.2012.07.040
日期:2012.9
An efficient one-pot strategy for the synthesis of triazolobenzothiadiazepine 1,1-dioxide derivatives has been developed by the reaction of 2-azido-N-substituted benzenesulfonamides and propargyl bromide in basic alumina under microwave condition via [3+2] azide–alkyne cycloaddition reaction. This protocol has synthetic advantages in terms of low environmental impact and short reaction time.
通过[3 + 2]叠氮化物-炔烃在微波条件下使2-叠氮基-N-取代的苯磺酰胺和炔丙基溴在碱性氧化铝中反应,已开发出一种有效的一锅合成三唑并苯并二氮杂二氮杂1,1-二氧化物衍生物的方法。环加成反应。该协议在低环境影响和短反应时间方面具有综合优势。