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
Catalyst-Free Transamidation of Aromatic Amines with Formamide Derivatives and Tertiary Amides with Aliphatic Amines
作者:Jiawen Yin、Jingyu Zhang、Changqun Cai、Guo-Jun Deng、Hang Gong
DOI:10.1021/acs.orglett.8b03542
日期:2019.1.18
A simple catalyst- and promoter-free protocol has been developed for the transamidation of weakly nucleophilic aromatic amines with formamide derivatives and low-reactivity tertiary amides with aliphatic amines. This strategy is advantageous because no catalyst or promoters are needed, no additives are required, separation and purification is easy, and the reaction is scalable. Significantly, this
Cobalt(II)-Catalyzed <i>N</i>
-Acylation of Amines through a Transamidation Reaction
作者:Juan Ma、Feng Zhang、Jingyu Zhang、Hang Gong
DOI:10.1002/ejoc.201800253
日期:2018.9.23
An efficient, practical, CoII‐catalyzed N‐acylation reaction of various amines using readily available and inexpensive DMF and other amides as carbonyl sources is described.
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