Catalytic C–H arylation of unactivated heteroaromatics with aryl halides by cobalt porphyrin

YY Qian, KL Wong, MW Zhang, TY Kwok, CT To…

Index: Qian, Ying Ying; Wong, Ka Lai; Zhang, Meng Wen; Kwok, Tsz Yiu; To, Ching Tat; Chan, Kin Shing Tetrahedron Letters, 2012 , vol. 53, # 13 p. 1571 - 1575

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Citation Number: 24

Abstract

Direct C–H arylation of unactivated heteroaromatics with aryl halides catalyzed by cobalt porphyrin is reported. The reaction is proposed to go through a homolytic aromatic substitution reaction. The aryl radical is electrophilic and a SOMO–HOMO interaction is predominant in the aryl radical addition process.