Copper-catalyzed one-pot synthesis of 2H-1,4-benzoxazin-3-(4H)-ones from 2-(o-haloaryloxy)acyl chlorides and primary amines
作者:Qunxian Hu、Ziming Xia、Ling Fan、Jiening Zheng、Xiaoxia Wang、Xin Lv
DOI:10.3998/ark.5550190.0013.612
日期:——
A facile and efficient Cu(I)-catalyzed one-pot synthesis of 2H-1,4-benzoxazin-3-(4 H)-one derivatives has been developed. The condensation between 2-(o-haloaryloxy)acyl chlorides and primary amines followed by Cu(I)-catalyzed intramolecular C-N bond coupling afforded a variety of 2H-1,4-benzoxazin-3-(4 H)-ones in good to excellent yields. Diversified substitutents on the 4-position could be conveniently
已开发出一种简便高效的 Cu(I) 催化一锅法合成 2H-1,4-benzoxazin-3-(4 H)-one 衍生物。2-(o-卤代芳氧基)酰氯和伯胺之间的缩合,然后是 Cu(I) 催化的分子内 CN 键偶联,得到了各种 2H-1,4-benzoxazin-3-(4 H)-ones优良的产量。可以方便地在 4 位上引入多样化的替代物。