An attempt to synthesize aglycone 1 derived from 2,3,5,4′-tetrahydroxystilbene-2-O-β-glucoside (THSG) via the Wittig reaction and Mizoroki–Heck reaction is described. In the Wittig protocol, 2,3,5,4′-tetramethoxystilbene 2 was obtained. Additionally, a palladium-catalyzed Mizoroki–Heck reaction strategy yielded 2-aryl-2,3-dihydrobenzofuran 13 instead of derivative 12 in good yield.
报道了一种尝试通过Wittig反应和Mizoroki–Heck反应合成由2,3,5,4′-四羟基
二苯乙烯-2-O-β-
葡糖苷(
THSG)衍生而来的配基1的实验。在Wittig反应方案中,得到了2,3,5,4′-四甲氧基
二苯乙烯2。此外,采用
钯催化的Mizoroki–Heck反应策略,以良好的产率得到了2-芳基-
2,3-二氢苯并呋喃13,而非衍
生物12。