Expeditious Synthesis of the Marine Natural Products Prepolycitrin A and Polycitrins A and B through Heck Arylations
作者:Karen Canto、Rodrigo da Silva Ribeiro、André F. P. Biajoli、Carlos Roque D. Correia
DOI:10.1002/ejoc.201301108
日期:2013.12
the syntheses of the marine natural products prepolycitrin A as well as polycitrins A and B were developed by employing the Heck–Matsuda arylation of maleic anhydride or dimethyl fumarate with aryldiazonium tetrafluoroborates. Both symmetrical and unsymmetrical 3,4-diarylmaleic anhydrides were easily and effectively prepared. Efficient bromination reactions that employed tribromoisocyanuric acid provided
通过使用马来酸酐或富马酸二甲酯与芳基重氮四氟硼酸盐的 Heck-Matsuda 芳基化,开发了用于合成海洋天然产物 prepolycitrin A 以及 polycitrin A 和 B 的新的、有效的方案。对称和不对称的 3,4-二芳基马来酸酐都可以轻松有效地制备。使用三溴异氰脲酸的高效溴化反应提供了获得聚柠檬素家族化合物的途径。在存在酪胺的微波辐射下,相应的马来酰亚胺以高产率从溴化 3,4-二芳基马来酸酐中获得。