Salicylic Acid-Catalyzed One-Pot Hydrodeamination of Aromatic Amines by <i>tert</i>
-Butyl Nitrite in Tetrahydrofuran
作者:Diego Felipe-Blanco、Francisco Alonso、Jose C. Gonzalez-Gomez
DOI:10.1002/adsc.201700475
日期:2017.8.17
in situ formed diazonium salts (from aromatic amines) has been observed in the presence of 10‐mol% salicylic acid, using tetrahydrofuran as the hydrogen donor. The reaction proceeds efficiently at 20 °C for a wide range of substituted anilines, even at 10‐mmol scale, without any other additive. The same protocol has been adapted to the selective deuterodeamination of some aromatic amines. Control experiments
使用四氢呋喃作为氢供体,在10%(摩尔)水杨酸存在下,原位形成的重氮盐(来自芳族胺)的加氢脱氨作用显着加快。在20°C下,即使没有任何其他添加剂,反应也能在20℃范围内有效地进行,甚至在10 mmol范围内也可用于各种取代的苯胺。相同的协议已适用于某些芳香胺的选择性氘代脱氨处理。对照实验清楚地表明,芳基自由基参与了反应机理。