Beaucage Noémie, Singh Zujhar, Bourdon Jérémie, Collins Shawn K
Noémie Beaucage, Dr. Zujhar Singh, Jérémie Bourdon and Prof. Dr. Shawn K. Collins, Department of Chemistry and Centre for Green Chemistry and Catalysis, Université de Montréal, 1375 Avenue Thérèse-Lavoie-Roux, Montréal.
Angew Chem Int Ed Engl. 2025 Feb 17;64(8):e202412606. doi: 10.1002/anie.202412606. Epub 2024 Oct 31.
Photocatalysis mediated by low energy light wavelengths has potential to enable safer, sustainable synthetic methods. A phenanthroline-derived ligand bathocupSani, with a large two-photon absorption (TPA) cross section was used to construct a heteroleptic complex [Cu(bathocupSani)(DPEPhos)]BF and a homoleptic complex [Cu(bathocupSani)]BF. The ligand and the respective homoleptic complex with copper exhibit two-photon upconversion with an anti-Stokes shift of 1.2 eV using red light. The complex [Cu(bathocupSani)]BF promoted energy transfer photocatalysis enabling oxidative dimerization of benzylic amines, sulfide oxidation, phosphine oxidation, boronic acid oxidation and atom-transfer radical addition.
由低能量光波长介导的光催化有潜力实现更安全、可持续的合成方法。一种具有大二光子吸收(TPA)截面的菲咯啉衍生配体bathocupSani被用于构建异质配合物[Cu(bathocupSani)(DPEPhos)]BF和同质配合物[Cu(bathocupSani)]BF。该配体以及与铜形成的相应同质配合物在使用红光时表现出具有1.2 eV反斯托克斯位移的双光子上转换。配合物[Cu(bathocupSani)]BF促进了能量转移光催化,实现了苄胺的氧化二聚、硫化物氧化、膦氧化、硼酸氧化和原子转移自由基加成。