Energy-Transfer-Mediated Photocatalysis by a Bioinspired Organic Perylenephotosensitizer HiBRCP
作者:Yan Zhang、Mingze Xia、Min Li、Qian Ping、Zhenbo Yuan、Xuanzhong Liu、Huimin Yin、Shuping Huang、Yijian Rao
DOI:10.1021/acs.joc.1c01876
日期:2021.11.5
triplet energy was greatly improved, and then, it could markedly promote the efficient geometrical isomerization of alkenes from the E-isomer to the Z-isomer. Moreover, it was also effective for energy-transfer-mediated organometallic catalysis, which allowed realization of the cross-coupling of aryl bromides and carboxylic acids through efficient energy transfer from HiBRCP to nickel complexes. Thus, the
能量转移在光催化中起着特殊的作用,它通过间接激发利用激发态的势能,其中光敏剂决定了反应的热力学可行性。受天然产物尾孢菌素的能量转移能力的启发,我们通过对尾孢菌素的结构修饰,开发了一种绿色高效的有机光敏剂 HiBRCP(六异丁酰还原尾孢菌素)。经过结构操作后,其三重态能量大大提高,从而显着促进烯烃从E-异构体到Z-异构体的高效几何异构化。-异构体。此外,它对能量转移介导的有机金属催化也很有效,通过从 HiBRCP 到镍配合物的有效能量转移,可以实现芳基溴化物和羧酸的交叉偶联。因此,对结构操纵与其光物理性质之间关系的研究为尾孢菌素的进一步修饰提供了指导,可应用于更有意义和更具挑战性的能量转移反应。