Expedient Dual Co/Organophotoredox Catalyzed Stereoselective Synthesis of All‐Carbon Quaternary Centers
作者:Àlex Cristòfol、Bart Limburg、Arjan W. Kleij
DOI:10.1002/anie.202103479
日期:2021.7.5
An efficient and attractive Co/organophotoredox dual catalysis protocol has been developed allowing the stereoselective access to a wide variety of syn-configured 1,3-diols featuring quaternary carbon centers. The synthesis of the target molecules is achieved under ambient reaction conditions using modular and accessible reagents, substituted vinyl cyclic carbonates and aldehydes, and in short reaction
已经开发了一种高效且有吸引力的 Co/有机光氧化还原双催化方案,允许立体选择性地访问各种具有四元碳中心的同构 1,3-二醇。目标分子的合成是在环境反应条件下使用模块化和易接近的试剂、取代的乙烯基环状碳酸酯和醛,在很短的反应时间内完成的。机械控制实验表明,立体选择性可以通过优选的 Zimmerman-Traxler 过渡态合理化,该过渡态包含 Co(烯丙基)物质和活化的醛。因此,这种新开发的工艺扩展了贱金属催化在构建具有挑战性的季碳立体中心中的应用。