Transition metal mediated synthesis of some prenylated phytoalexins of Morus alba Linn.
作者:Inderjit S. Mann、David A. Widdowson、John M. Clough
DOI:10.1016/s0040-4020(01)81952-9
日期:1991.9
Directed functionalisation of resorcinol and benzofuran rings was achieved by activation with a coordinated tricarbonylchromium(0) unit and vicinal or remote lithiation directed by methoxy or t-butyldiphenylsilyloxy groups respectively. The process was applied either before [to the geranylbenzofuran (16) for mulberrofuran B (5)] or after [for moracin C (2)] palladium catalysed coupling of the 2-stannylated
An Efficient Total Synthesis of Mulberrofuran B and L
作者:Cheol Gi Kim、Jong-Gab Jun
DOI:10.1002/bkcs.10442
日期:2015.9
An efficient approach has been developed for the synthesis of mulberrofuranB and L from 2,4‐dihydroxybenzaldehyde and 5‐bromoresorcinol. The key steps of the synthesis are neutral Al2O3 ‐mediated regioselective geranylation, Ramirez gem‐dibromoolefination, and the Suzuki coupling.
已开发出一种有效的方法,用于从2,4-二羟基苯甲醛和5-溴代间苯二酚合成呋喃丹B和L。合成的关键步骤是中性Al 2 O 3介导的区域选择性香叶基化,拉米雷斯宝石二溴代烯烃化和Suzuki偶联。