Enamines; Part 46<sup>1</sup>. Synthesis of 5-Dialkylamino-1-aryl-1,2,3-triazoles Functionalized at C-4
作者:Nicoletta Grassivaro、Elisabetta Rossi、Riccardo Stradi
DOI:10.1055/s-1986-31851
日期:——
Aryl azides undergo a [3+2]-cycloaddition with 1,1-diaminoethenes having an electron-withdrawing group at C-2 to give unstable 5,5-diamino-4,5-dihydro-1,2, 3-triazoles from which one amino group is eliminated to afford 5-amino-1-aryl-1, 2,3-triazoles functionalized at C-4.
芳基
叠氮化物与在C-2具有电子吸引基团的1,1-二
氨基
乙烯发生[3+2]环加成反应,生成不稳定的5,5-二
氨基-4,5-二氢-
1,2,3-三唑,其中一个
氨基被消除,最终形成在C-4功能化的5-
氨基-1-芳基-
1,2,3-三唑。