作者:Jianfei Sheng、Tianlong Xu、Ensheng Zhang、Xuejing Zhang、Wentao Wei、Yong Zou
DOI:10.1021/acs.jnatprod.6b00510
日期:2016.10.28
A total synthesis of coumestrol (1) and aureol (2) is described. The Perkin condensation of 2-bromo-4-hydroxylphenylacetic acid (6) and o-hydroxybenzaldehydes (7) gave the corresponding 2′-bromo-3-arylcoumarins (9). A copper-catalyzed consecutive hydroxylation and aerobic oxidative coupling of 9 under microwave conditions facilitated the total synthesis of 1 and 2, respectively, with spectroscopic
描述了香豆甾醇(1)和金黄色酚(2)的全合成。的2-溴-4- hydroxylphenylacetic酸(PERKIN的缩合6)和Ô -hydroxybenzaldehydes(7),得到相应的2'-溴-3- arylcoumarins(9)。在微波条件下,铜催化的连续羟基化反应9和有氧氧化偶联反应分别促进了1和2的总合成,其光谱数据与天然产物非常相似。