all-meta-trisubstituted benzenes from readily available 3,5-disubstituted catechols. Oxidation and [4 + 2] cycloaddition with acetylene dienophiles generate a bicyclo[2.2.2]octane structure that is doubly decarbonylated initiated by blue-light irradiation, leading to a meta,meta-disubstitution pattern on the re-aromatized system. This enables this substitution pattern even with very bulky alkyl groups (deemed
我们报告了一种从容易获得的 3,5-二取代
儿茶酚合成全间位三取代苯的通用且可扩展的方法。与
乙炔亲二烯体的氧化和 [4 + 2] 环加成生成双环 [2.2.2]
辛烷结构,该结构在蓝光照射下被双脱羰基化,从而在重新芳构化的系统上形成间位、间位二取代模式。这使得即使具有非常庞大的烷基(被认为是优异的分散能量供体)的这种取代模式也能够被结合到例如手性
磷酸催化剂中。