Copper‐catalyzed one‐pot coupling reactions of aldehydes (ketones), tosylhydrazide and 2‐amino(benzo)thiazoles: An efficient strategy for the synthesis of
<i>N</i>
‐alkylated (benzo)thiazoles
作者:Zengyang Xie、Ruijiao Chen、Mingfang Ma、Lingdong Kong、Jun Liu、Cunde Wang
DOI:10.1002/aoc.5124
日期:2019.10
An efficient and practical C–N bond formation methodology for the synthesis of N‐alkylated (benzo)thiazoles was developed, via the copper‐catalyzed one‐pot two‐step reactions of 2‐amino(benzo)thiazoles and aldehydes (ketones) with tosylhydrazide. This cross‐coupling reaction proceeded smoothly and tolerated a broad range of functional groups (46 examples). A variety of functionalized N‐alkylated (benzo)thiazoles
通过2-氨基(苯并)噻唑与醛(酮)的铜催化一锅两步反应,开发了一种用于合成N烷基化(苯并)噻唑的有效,实用的CN键形成方法。甲苯磺酰肼。这种交叉偶联反应进行得很顺利,并能耐受各种官能团(46个例子)。以中等至高收率获得了各种功能化的N烷基化(苯并)噻唑。值得注意的是,通过该方案也可以实现克级的芬替尼(抗炎药)合成。