作者:Makafui Gasonoo、Douglas A. Klumpp
DOI:10.1016/j.tetlet.2015.06.028
日期:2015.8
The product aryl-substituted 2-oxindoles are formed in generally good yields. With substituted arenes such as toluene, bromobenzene, or anisole, the Friedel–Crafts reactions occur with excellent regioselectivity. A mechanism is proposed involving carbocationic electrophiles leading to the aromatic substitution chemistry.
已经制备了一系列丙酮基取代的3-羟基-2-氧吲哚,并与芳烃在超酸促进的Friedel-Crafts反应中反应。产物芳基取代的2-氧吲哚通常以良好的产率形成。对于取代的芳烃,例如甲苯,溴苯或苯甲醚,Friedel-Crafts反应的区域选择性极好。提出了涉及碳阳离子亲电试剂导致芳族取代化学的机理。