Merging Photocatalytic Doubly‐Decarboxylative C<sub>sp</sub><sup>2</sup>−C<sub>sp</sub><sup>2</sup> Cross‐Coupling for Stereo‐Selective (<i>E</i>)‐<i>α</i>,<i>β</i>‐Unsaturated Ketones Synthesis
作者:Subal Mondal、Siba P. Midya、Soumya Mondal、Suman Das、Pradyut Ghosh
DOI:10.1002/chem.202303337
日期:2024.1.26
cross-coupling reaction. Present catalytic system efficiently cross-coupled α, β-unsaturated acids and α-keto acids to a variety of α, β-unsaturated ketones with excellent E-selectivity and functional group tolerance. In this merging catalysis, photocatalyst implicated through reductive quenching cycle whereas cross coupling proceeded over one electron oxidative pallado-cycle in a tandem pathway.
在此,我们首次报道了光催化双脱羧C sp 2 -C sp 2交叉偶联反应。该催化体系能够将α , β-不饱和酸和α-酮酸与多种α , β-不饱和酮有效交叉偶联,具有优异的E-选择性和官能团耐受性。在这种合并催化中,光催化剂涉及还原猝灭循环,而交叉耦合则在串联途径中的一个电子氧化帕拉多循环上进行。