Diruthenium Diacetate Catalysed Aerobic Oxidation of Hydroxylamines and Improved Chemoselectivity by Immobilisation to Lysozyme
作者:Flavia Lupi、Tiziano Marzo、Giampiero D'Adamio、Sara Cretella、Francesca Cardona、Luigi Messori、Andrea Goti
DOI:10.1002/cctc.201701083
日期:2017.11.23
A new green method for the preparation of nitrones through the aerobic oxidation of the corresponding N,N‐disubstituted hydroxylamines has been developed upon exploring the catalytic activity of a diruthenium catalyst, that is, [Ru2(OAc)4Cl]), in aqueous or alcoholic solution under mild reaction conditions (0.1 to 1 mol % catalyst, air, 50 °C) and reasonable reaction times. Notably, the catalytic activity
通过探索二钌催化剂的催化活性,即[Ru 2(OAc)4 Cl]),开发了一种新的绿色方法,该方法通过相应的N,N-二取代羟胺的需氧氧化来制备硝酮。水溶液或酒精溶液,反应条件温和(0.1至1 mol%的催化剂,空气,50°C)和合理的反应时间。值得注意的是,双金属中心与小蛋白溶菌酶结合后,其催化活性得以保留。有趣的是,与二钌催化剂相比,这种新的人工金属酶赋予了对环羟胺氧化的完全化学选择性。