The [Cu]-catalyzed SNAR reactions: direct amination of electron deficient aryl halides with sodium azide and the synthesis of arylthioethers under Cu(II)–ascorbate redox system
作者:Yogesh Goriya、C.V. Ramana
DOI:10.1016/j.tet.2010.07.032
日期:2010.9
A one pot [Cu]-promoted SNAr reaction of electron-deficient halobenzenes with sodium azide and the reduction of the intermediate arylazides under the same Cu(II)–ascorbate redox conditions leading to anilines has been documented. Control experiments revealed that both ascorbate and proline play important role in the reaction path way. Further, the use of this catalytic Cu(II)–ascorbate redox system
已有文献证明,在相同的Cu(II)-抗坏血酸氧化还原条件下,电子缺陷型卤代苯与叠氮化钠的一锅[Cu]促进S N Ar反应和中间芳基叠氮化物的还原导致苯胺。对照实验表明,抗坏血酸和脯氨酸均在反应路径中起重要作用。此外,已经探索使用这种催化性的Cu(II)-抗坏血酸氧化还原系统来合成芳基硫醚。