Convergent Total Synthesis of (±)-Apomorphine via Benzyne Chemistry: Insights into the Mechanisms Involved in the Key Step
作者:Cristiano Raminelli、Ana Muraca、Givago Perecim、Alessandro Rodrigues
DOI:10.1055/s-0036-1588855
日期:2017.8
the key step of the synthesis, a polar [4+2]-cycloaddition mechanism was proposed. Furthermore, NMR experiments and theoretical calculations were carried out to elucidate the hydrogen migration mechanism. (±)-Apomorphine hydrochloride was achieved after 9 steps in an overall yield of 8% involving benzyne chemistry. Convergent total synthesis of (±)-apomorphine hydrochloride was accomplished by an approach
摘要 (±)-阿扑吗啡盐酸盐的总聚合合成是通过一种方法完成的,该方法在关键步骤中采用了一系列转化过程,其中涉及[4 + 2]-环加成反应,然后进行氢迁移。通过该转化序列,以75%的分离产率区域选择性地获得了所需的甲啡肽核心。由于在合成的关键步骤中仅产生一种区域异构体,因此提出了极性的[4 + 2]-环加成机理。此外,进行了NMR实验和理论计算以阐明氢的迁移机理。经过9个步骤,获得了(±)-Apomorphine盐酸盐,涉及苯炔化学的总收率为8%。 (±)-阿扑吗啡盐酸盐的总聚合合成是通过一种方法完成的,该方法在关键步骤中采用了一系列转化过程,其中涉及[4 + 2]-环加成反应,然后进行氢迁移。通过该转化序列,以75%的分离产率区域选择性地获得了所需的甲啡肽核心。由于在合成的关键步骤中仅产生一种区域异构体,因此提出了极性的[4 + 2]-环加成机理。此外,进行了NMR实验和理论计算以阐明氢的