作者:Plachinski, Ellie F.、Kim, Hyung Joo、Genzink, Matthew J.、Sanders, Kyana M.、Kelch, Riley M.、Guzei, Ilia A.、Yoon, Tehshik P.
DOI:10.1021/jacs.4c04706
日期:——
has limited the use of photocycloaddition methodology toward the synthesis of this important class of natural products. Herein, we demonstrate that acid-controlled precipitation of C-acyl imidazoles promotes a highly selective solid-state photocycloaddition, and the products of this reaction can be quickly transformed into truxillate natural products.
Truxillates 构成一大类以高度取代的环丁烷为核心的二聚天然产物。原则上,这些结构可以通过[2 + 2]光环加成有效合成。然而,在溶液状态下控制高能电子激发反应中间体的困难可能导致区域和非对映控制较差。这限制了光环加成方法在合成这一类重要天然产物中的应用。在此,我们证明了C-酰基咪唑的酸控制沉淀促进了高选择性的固态光环加成,并且该反应的产物可以快速转化为Truxillate天然产物。