Safe and Scalable Aerobic Oxidation by 2-Azaadamantan-2-ol (AZADOL)/NO<sub><i>x</i></sub> Catalysis: Large-Scale Preparation of Shi’s Catalyst
作者:Yusuke Sasano、Hikaru Sato、Shinsuke Tadokoro、Masami Kozawa、Yoshiharu Iwabuchi
DOI:10.1021/acs.oprd.8b00456
日期:2019.4.19
A method for safe and scalable aerobic alcohol oxidation using 2-azaadamantan-2-ol (AZADOL), an azaadamantane-type hydroxylamine catalyst, with a NOx cocatalyst in a conventional batch reactor has been developed. The use of 2 mol % AZADOL and 10 mol % NaNO2 was determined to promote aerobic alcohol oxidation quantitatively within a reasonable time (8 h). Safety is ensured by controlling the reaction temperature below the flash point of the acetic acid solvent. The robustness of the developed method is demonstrated by the SOO g scale oxidation of diacetone fructose into Shi's catalyst for asymmetric epoxidation.