N-formylation of amine using graphene oxide as a sole recyclable metal-free carbocatalyst
作者:Juan Ma、Jingyu Zhang、Xiao Zhou、Jiawei Wang、Hang Gong
DOI:10.1007/s13738-018-1471-3
日期:2018.12
AbstractGraphene oxide (GO), an inexpensive, environment-friendly, and metal-free carbocatalyst, used for the N-formylation of amines is developed. In this reaction, GO shows good activity, selectivity, and recyclability. This strategy has an array of advantages, such as being metal free, without additive, wide-scope protocol, scalable with a low catalyst loading of 3 wt%, use of readily available
the Mn(II)-catalyzed N-acylation of amines with high yields using N,N-dimethylformamide and other amides as the carbonyl source. The protocol is simple, does not require any acid, base, ligand, or other additives, and encompasses a broad substrate scope for primary, secondary, and heterocyclic amines. A practical protocol has been developed here for the Mn(II)-catalyzed N-acylation of amines with high