Regioselective Biomimetic Oxidative Cyclization Strategy for the Synthesis of Aryldihydronaphthalene Lignans
作者:Wenling Li、Hao Liu、Jingyan Xu、Peng Zang、Qian Liu、Wenbo Li
DOI:10.1002/ejoc.201301825
日期:2014.6
A regioselectivebiomimeticoxidativecyclizationstrategy for the construction of aryldihydronaphthalene skeletons has been developed as an efficient synthetic approach to the preparation of natural 8-8-cyclic diferulic acid and canabisin D. The oxidative coupling of ethyl 5-tert-butylferulate catalyzed by different oxidants yielded tetrahydrofuran or dibenzylidenesuccinate-type 8-8-coupling products
一种用于构建芳基二氢萘骨架的区域选择性仿生氧化环化策略已成为制备天然 8-8-环二阿魏酸和大麻素 D 的有效合成方法。 不同氧化剂催化 5-叔丁基阿魏酸乙酯的氧化偶联产生了四氢呋喃或二亚苄基琥珀酸酯型 8-8 偶联产物,随后进行酸催化环化以产生几种异构的反式芳基二氢萘。还提出了所有环化反应的反应机理。