Visible light photoredox catalysis with transition metal complexes: applications in organic synthesis.
Visible light photoredox catalysis with transition metal complexes: applications in organic synthesis.
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DOI：
10.1021/cr300503r
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发表时间：
2013-07-10
期刊：
影响因子：
62.1
通讯作者：
MacMillan, David W. C.
中科院分区：
文献类型：
--
作者：
Prier, Christopher K.;Rankic, Danica A.;MacMillan, David W. C.
1. 催化领域的一个基本目标是开发小分子活化的新模式。近年来备受关注的有机分子催化活化方法之一是可见光光氧化还原催化。在一般意义上，这种方法依赖于金属配合物和有机染料在可见光光激发下与有机衬底进行单电子转移（SET）过程的能力。许多最常用的可见光催化剂是钌和铱的多吡啶配合物，典型的配合物是三（2,2′-联吡啶）钌（II）或Ru (bpy) 32 +（图1）。这些复合物吸收电磁波谱可见区域的光，从而产生稳定、长寿命的光激发态。受激物质的寿命足够长（Ru (bpy) 32 +为1100 ns），因此它可能参与双分子电子转移反应，与失活途径竞争。虽然这些物质在基态下是很差的单电子氧化剂和还原剂，但电子的激发产生激发态，是非常有效的单电子转移试剂。重要的是，在简单的家用灯泡照射下，这些稳定的、良性的催化剂转化为氧化活性的物种代表了一个显著的化学选择性触发，以诱导独特和有价值的催化过程。Ru (bpy) 32 +及其配合物作为可见光催化剂的能力已经得到了广泛的认识和研究，并在无机化学和材料化学中得到了广泛的应用。特别地，光氧化还原催化剂已经被用来完成水分解成氢
1. INTRODUCTION A fundamental aim in the field of catalysis is the development of new modes of small molecule activation. One approach toward the catalytic activation of organic molecules that has received much attention recently is visible light photoredox catalysis. In a general sense, this approach relies on the ability of metal complexes and organic dyes to engage in single-electrontransfer (SET) processes with organic substrates upon photoexcitation with visible light. Many of the most commonly employed visible light photocatalysts are polypyridyl complexes of ruthenium and iridium, and are typified by the complex tris (2, 2′-bipyridine) ruthenium (II), or Ru (bpy) 3 2+(Figure 1). These complexes absorb light in the visible region of the electromagnetic spectrum to give stable, long-lived photoexcited states. 1, 2 The lifetime of the excited species is sufficiently long (1100 ns for Ru (bpy) 3 2+) that it may engage in bimolecular electron-transfer reactions in competition with deactivation pathways. 3 Although these species are poor single-electron oxidants and reductants in the ground state, excitation of an electron affords excited states that are very potent single-electron-transfer reagents. Importantly, the conversion of these bench stable, benign catalysts to redox-active species upon irradiation with simple household lightbulbs represents a remarkably chemoselective trigger to induce unique and valuable catalytic processes. The ability of Ru (bpy) 3 2+ and related complexes to function as visible light photocatalysts has been recognized and extensively investigated for applications in inorganic and materials chemistry. In particular, photoredox catalysts have been utilized to accomplish the splitting of water into hydrogen
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影响因子：
16.6
作者：
Cherevatskaya, Maria;Neumann, Matthias;Koenig, Burkhard
通讯作者：
Koenig, Burkhard
DOI：
10.1039/c39830000944
发表时间：
1983-01-01
影响因子：
--
作者：
ADLINGTON, RM;BALDWIN, JE;KOZYROD, RP
通讯作者：
KOZYROD, RP
影响因子：
16.6
作者：
Andrews, R. Stephen;Becker, Jennifer J.;Gagne, Michel R.
通讯作者：
Gagne, Michel R.
影响因子：
15
作者：
Allongue, P;Delamar, M;Saveant, JM
通讯作者：
Saveant, JM
影响因子：
15
作者：
Baik, TG;Luis, AL;Krische, MJ
通讯作者：
Krische, MJ