benzamides with alkynes assisted by an 8-aminoquinoline ligand in the presence of Co(OAc)2·4H2O and pivalic acid under an air atmosphere provided isoquinolone derivatives in good to excellent yields. In this reaction, the active Co(III) species is regenerated by the reaction of Co(I) species with pivalic acid under an air atmosphere with hydrogen evolution. The proposed mechanism was supported by competition
在Co(
OAc)2 ·4H 2 O和
新戊酸的存在下,在空气气氛下,
苯甲
酰胺与
炔烃在
8-氨基喹啉配体的辅助下,以良好或极好的收率提供了异
喹诺酮衍
生物。在该反应中,活性Co(III)物种是通过Co(I)物种与
新戊酸在空气中有
氢气逸出的条件下反应而再生的。竞争实验,
氘标记研究,自由基清除剂实验和动力学研究为拟议的机制提供了支持。