relies on a new and mild method for butenolide synthesis mediated by thiols. The initial photooxygenation and butenolide synthesis have been merged with subsequent photoredox reactions to achieve rare dual-photocatalyst cascades affording various fused butyrolactones. Ground state Lewis acid activity for methylene blue has been unveiled and then exploited in the synthesis of substituted cyclopentanones
高价值的含氧
多环化合物已经通过一锅法从简单的前体快速有效地获得。报告的方法依赖于一种新的温和方法,用于由
硫醇介导的
丁烯内酯合成。最初的光氧化和
丁烯内酯合成已与随后的光氧化还原反应合并,以实现罕见的双光催化剂级联,提供各种稠合丁内酯。
亚甲基蓝的基态
路易斯酸活性已被揭示,然后被用于合成取代的
环戊酮。