介孔石墨相氮化碳作为双（邻苯二酚）硅酸烷基酯双催化芳基化反应中的多相有机光催化剂
Mesoporous Graphitic Carbon Nitride as a Heterogeneous Organic Photocatalyst in the Dual Catalytic Arylation of Alkyl Bis(catecholato)silicates.
作者信息
Schirmer Tobias E, Abdellaoui Mehdi, Savateev Aleksandr, Ollivier Cyril, Antonietti Markus, Fensterbank Louis, König Burkhard
机构信息
Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, Regensburg 93053, Germany.
CNRS, Institut Parisien de Chimie Moléculaire -4 Place Jussieu, CC 229, Sorbonne Université, Paris Cedex 05 F-75252, France.
出版信息
Org Lett. 2022 Apr 8;24(13):2483-2487. doi: 10.1021/acs.orglett.2c00529. Epub 2022 Mar 24.
Mesoporous graphitic carbon nitride (mpg-CN) is introduced as a heterogeneous photocatalyst to perform dual photoredox- and nickel-catalyzed cross-coupling reactions between alkyl bis(catecholato)silicates as radical precursors and aryl or alkenyl bromides. The synergy between this recyclable photocatalyst and the broadly applied homogeneous nickel complex [Ni(dtbbpy)Br] gives access to C(sp)-C(sp) cross-coupling products in a sustainable fashion. The recycled mpg-CN photocatalyst was analyzed by time-resolved emission spectroscopy and EPR spectroscopy.
介孔石墨相氮化碳（mpg-CN）作为一种多相光催化剂，用于实现烷基双（邻苯二酚）硅酸盐作为自由基前体与芳基或烯基溴之间的双光氧化还原和镍催化交叉偶联反应。这种可回收的光催化剂与广泛应用的均相镍配合物[Ni(dtbbpy)Br]之间的协同作用，以可持续的方式获得了C(sp)-C(sp)交叉偶联产物。通过时间分辨发射光谱和电子顺磁共振光谱对回收的mpg-CN光催化剂进行了分析。
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