Synthesis of diaryl ether components of ellagitannins using <i>ortho</i>-quinone with consonant mesomeric effects
作者:Hayato Konishi、Tsukasa Hirokane、Hajime Hashimoto、Kazutada Ikeuchi、Shintaro Matsumoto、Shinnosuke Wakamori、Hidetoshi Yamada
DOI:10.1039/d0cc00889c
日期:——
Methods for synthesizing C–O digallate structures, the basic unit of diaryl ether components of natural ellagitannins, are described. In the designed building block derived from gallic acid, consonantly overlapped mesomeric effects enhanced its electrophilicity. This building block demonstrated substantial reactivity to improve the synthesis of dehydrodigalloyl, tergalloyl, and valoneoyl groups.
描述了合成CO-0没食子酸酯结构的方法,该化合物是天然鞣花单宁的二芳基醚成分的基本单元。在从没食子酸衍生的设计构件中,介观重叠的介观效应增强了其亲电子性。该结构单元显示出显着的反应活性,可改善脱氢二氢二氢酰基,三氢酰基和瓦龙酰基的合成。