An Organocatalytic System for <i>Z</i>-Alkene Synthesis via a Hydrogen-Bonding-Assisted Photoinduced Electron Donor–Acceptor Complex
作者:Hui Zhao、Yingxiao Zong、Yue Sun、Guanghui An、Junke Wang
DOI:10.1021/acs.orglett.4c00433
日期:2024.3.1
photoinduced electron donor–acceptor (EDA) complex and energy transfer was developed. This mild and metal-free protocol allows facile access to various Z-alkenes. Mechanism studies revealed that the organophotocatalyst, 4-CzIPN, formed a distinct three-component EDA complex with redox-active esters and (C6H5O)2P(O)OH to trigger the photoredox catalysis. The E → Z isomerization was achieved via electron exchange
开发了一种用于光诱导电子供体-受体(EDA)复合物和能量转移组合的通用催化供体。这种温和且不含金属的方案可以轻松获得各种Z-烯烃。机理研究表明,有机光催化剂 4-CzIPN 与氧化还原活性酯和 (C 6 H 5 O) 2 P(O)OH 形成独特的三组分 EDA 复合物,以触发光氧化还原催化。 E → Z异构化是通过 4-CzIPN 的电子交换能量转移实现的。