Scope and Applications of 2,3-Oxidative Aryl Rearrangements for the Synthesis of Isoflavone Natural Products
作者:George Kwesiga、Eric Sperlich、Bernd Schmidt
DOI:10.1021/acs.joc.1c01375
日期:2021.8.6
hypervalent iodine reagents was investigated with a view to the synthesis of naturally occurring isoflavones. In contrast to several previous reports in the literature, we did not observe the formation of any benzofurans via a ring contraction pathway, but could isolate only isoflavones, resulting from an oxidative 2,3-aryl rearrangement, and flavones, resulting from an oxidation of the flavanones. Although
为了合成天然存在的异黄酮,研究了黄烷酮与高价碘试剂的反应。与之前的几篇文献报道相反,我们没有观察到通过环收缩途径形成任何苯并呋喃,但只能分离出异黄酮(由氧化 2,3-芳基重排产生)和黄酮(由氧化的 2,3-芳基重排产生)黄烷酮。虽然 2,3-氧化重排允许合成有用的方法来处理一些异黄酮天然产物,因为所需的起始材料很方便,但总体合成效用和反应的普遍性似乎比以前的文献报告所暗示的要有限。