Hexafluoro-2-propanol Promotes <i>para</i>
-Selective C-H Amination of Free Anilines with Azodicarboxylates
作者:Ren-Jin Tang、Thierry Milcent、Benoit Crousse
DOI:10.1002/ejoc.201700794
日期:2017.9.1
An effective, mild, and clean method for the C–H amination of free anilines with azodicarboxylates in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) without the need for any additional catalysts or reagents was developed. The reaction was found to be highly regioselective and provided a series of p-aminophenylhydrazine derivatives in excellent yields. Moreover, compatibility with a free amino group makes
一种在 1,1,1,3,3,3-六氟-2-丙醇 (HFIP) 中使用偶氮二羧酸盐对游离苯胺进行 C-H 胺化的有效、温和且清洁的方法,无需任何额外的催化剂或试剂发达。发现该反应具有高度区域选择性,并以极好的收率提供了一系列对氨基苯肼衍生物。此外,与游离氨基的兼容性使该协议成为合成化学中的一个有吸引力的策略。