Divergent and concise total syntheses of dihydrochalcones and 5-deoxyflavones recently isolated from Tacca species and Mimosa diplotricha
作者:Tze Han Sum、Tze Jing Sum、Jamie E. Stokes、Warren R.J.D. Galloway、David R. Spring
DOI:10.1016/j.tet.2015.02.017
日期:2015.7
report the concise and divergenttotalsyntheses of several naturally occurring dihydrochalcones and 5-deoxyflavones from readily available starting materials. The divergent strategy is based around manipulation of a common chalcone scaffold and features application of Algar–Flynn–Oyamada oxidation and benzoquinone C–H activation methodologies. These are the first reported totalsyntheses of these biologically
Rh-Catalyzed Decarbonylative Addition of Salicylaldehydes with Vinyl Ketones: Synthesis of Taccabulins A-E
作者:Maddali L. N. Rao、Boddu S. Ramakrishna
DOI:10.1002/ejoc.201901314
日期:2019.12.15
A Rh‐catalyzed decarbonylative addition of salicylaldehydes with vinylketones was developed for the synthesis of o‐hydroxydihydrochalcones in good yields. This protocol was applied in the synthesis of taccabulin family of natural products.