Symbiotic Transition-Metal and Organocatalysis for Catalytic Ambient Amine Oxidation and Alkene Reduction Reactions
作者:Alexander T. Murray、Rose King、Joseph V. G. Donnelly、Myles J. H. Dowley、Floriana Tuna、Daniel Sells、Matthew P. John、David R. Carbery
DOI:10.1002/cctc.201501153
日期:2016.2
A new oxidation reaction based on two simple catalysts, namely, alloxan and a CuI salt, is highly effective for the aerobic oxidation and oxidative cross‐coupling of amines. The reaction is operationally simple, reaction atmospheres enriched in dioxygen are obviated, and neither catalyst component requires prior synthesis. Mechanistic investigations have been performed and point towards a complex reaction
一种新的基于两种简单催化剂的氧化反应,即四氧嘧啶和Cu I盐,对胺的需氧氧化和氧化交叉偶联非常有效。该反应操作简单,避免了富含双氧的反应气氛,并且两种催化剂组分都不需要事先合成。已经进行了机理研究,并指出了一个复杂的反应流形,其证据支持了不会通过醌-亚胺步骤进行的催化循环。此外,这种双催化剂体系可有效地进行烯烃和炔烃的二酰亚胺介导的加氢反应,这一转变以前在醌催化剂体系中尚未见报道。