Fausti Giovanni, Morlet-Savary Fabrice, Lalevée Jacques, Gaumont Annie-Claude, Lakhdar Sami
Normandie Univ., LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal Juin, Caen, 14000, France.
Institut de Science des Matériaux de Mulhouse, IS2M-UMR CNRS 7361-UHA, 15, rue Jean Starcky, 68057, Mulhouse Cedex, France.
Chemistry. 2017 Feb 10;23(9):2144-2148. doi: 10.1002/chem.201604683. Epub 2017 Jan 20.
The first visible-light-mediated, metal-free hydrophosphinylation of unactivated alkenes with ethyl and butyl phosphinates is described. The reaction works with a low catalyst loading of 9-mesityl-10-methylacridinium perchlorate (Fukuzumi photocatalyst, 0.5 mol %) in the presence of diphenyliodonium triflate as oxidant. The reaction proceeds smoothly and covers a broad scope of substrates. Detailed mechanistic investigations, including EPR spectroscopy, fluorescence and steady-state photolysis, allowed the mechanism of this photoreaction to be rationalized.
本文描述了首例可见光介导的、无金属的未活化烯烃与乙基和丁基次膦酸酯的氢膦酰化反应。该反应在三氟甲磺酸二苯基碘鎓作为氧化剂存在的情况下，以低催化剂负载量的9-均三甲苯基-10-甲基吖啶高氯酸盐（深津光催化剂，0.5 mol%）进行。反应顺利进行，底物范围广泛。包括电子顺磁共振光谱、荧光和稳态光解在内的详细机理研究，使该光反应的机理得以合理化。
