Two distinctive transition-metal-promoted aerobic oxidation protocols have been developed for the synthesis of isoquinolones from 2-vinylbenzaldehydes and aniline derivatives. Thus, the one-pot tandem reaction sequence of imine formation, thermal 6π-electrocyclization, followed by either Cu(OAc)2-mediated or Pd(OAc)2-catalyzed aerobic oxidation protocol allowed the ready access to isoquinolone derivatives
已经开发出两种独特的过渡
金属促进的需氧氧化方案,用于从
2-乙烯基苯甲醛和
苯胺衍
生物合成
异喹诺酮。因此,
亚胺形成,热6π-电环化,然后由Cu(OAc)2介导的或Pd(OAc)2催化的好氧氧化协议的一锅串联反应序列使现成的
异喹诺酮衍
生物易于使用。对照实验表明,在Cu(OAc)2或Pd(OAc)2催化剂存在下,1-氮杂
环丁烷的6π-电环化形成的1,2-二氢
异喹啉中间体被好氧氧化为
异喹诺酮。