Convenient Synthesis of Triarylamines via Ester-Mediated Nucleophilic Aromatic Substitution
作者:Tetsutaro Hattori、Takashi Satoh、Sotaro Miyano
DOI:10.1055/s-1996-4244
日期:1996.4
A convenient method for the preparation of arylamines via nucleophilic displacement of methoxy- and/or fluorobenzoates with lithium amides is presented. Treatment of 2,6-di-tert-butyl-4-methoxyphenyl-2- or 4-fluorobenzoate (2 or 7) with lithium diarylamides 3e-h in THF and/or THF/HMPA under mild conditions affords the 2- or 4-(diarylamino)benzoates 4e-h or 8g, h in good to excellent yields.
本文介绍了一种通过锂胺对甲氧基和/或氟苯甲酸酯进行亲核取代制备芳香胺的便利方法。在温和条件下,用锂二芳胺3e-h处理2,6-二叔丁基-4-甲氧基苯基-2或4-氟苯甲酸酯(2或7),在THF和/或THF/HMPA中,可以以良好到优异的收率得到2或4-(二芳基氨基)苯甲酸酯4e-h或8g, h。