Transition-Metal-Free Synthesis of Oxindoles by Potassium tert-Butoxide-Promoted Intramolecular α-Arylation
摘要:
Potassium tert-butoxide-mediated intramolecular alpha-arylations of fluoro- and chloro-substituted anilides provide oxindoles in DMF at 80 degrees C. In this manner, diversely substituted products have been obtained in moderate to high yields.