One-pot sequential diprop-2-ynylation and cycloaddition: An efficient synthesis of novel <i>N</i>,<i>N</i>-bis(1,2,3-triazol-4-yl) methylarylamines starting from primary amines
作者:Zhu-Jun He、Mei-Hong Wei、Xiao-Lan Zhang、Jun-Min Chen、Shou-Ri Sheng
DOI:10.1080/00397911.2019.1643482
日期:2019.10.18
Abstract A facile, one-pot synthesis strategy for the tertiary arylamines bearing N,N-bis(1,2,3-triazol-4-yl)methyl structure has been developed by sequential diprop-2-ynylation of primary amines with propargyl bromide in the presence of calcium hydride in DMF and [3 + 2] “click” cycloaddition with organic azides promoted by cupric acetate in the mixed DMF-H2O media. This protocol provides some features
摘要 通过伯胺与炔丙基溴的连续二丙-2-炔化反应,开发了一种简便的一锅法合成含有 N,N-双(1,2,3-三唑-4-基)甲基结构的叔芳基胺的方法。在 DMF 中存在氢化钙和在混合 DMF-H2O 介质中由醋酸铜促进的有机叠氮化物的 [3 + 2]“点击”环加成。该协议提供了一些特性,例如高效和区域选择性、易于操作、中等至良好的产品收率 (56-84%),在温和条件下具有广泛的底物范围。图形概要