Herein, a general and practical route to 2-(2-aminophenyl)- and 2-(2-alkoxyphenyl)-substituted benzazoles by nucleophilic aromatic substitution (SNAr) is described. Upon treatment with Cs2CO3, the formation of C–N, C–O bonds occur between fluorine-substituted 2-aryl benzazoles and a diverse range of nitrogen, oxygen nucleophiles to provide the targets in good to excellent yields. Commercially available
在此,向2-(2-
氨基苯基)一般与实际的路线-和2-(2-烷氧基苯基) -取代的通过亲核芳香取代(S氮
茚Ñ Ar)的说明。经Cs 2 CO 3处理后,在
氟取代的2-芳基
苯并恶唑与各种范围的氮,氧亲核试剂之间形成C–N,C–O键,从而以优良至优异的收率提供了目标化合物。可商购的亲核试剂和高原子经济性是该方案的显着特征。同时,在
钯催化剂存在下,还提供了C(sp 2)–C(sp 3)键的结构。