657-78-3Relevant articles and documents
HCl-mediated transamidation of unactivated formamides using aromatic amines in aqueous media
Dhawan, Sanjeev,Girase, Pankaj Sanjay,Kumar, Vishal,Karpoormath, Rajshekhar
, p. 3729 - 3739 (2021/10/14)
We report transamidation protocol to synthesize a range of secondary and tertiary amides from weakly nucleophilic aromatic and hetero-aryl amines with low reactive formamide derivatives, utilizing hydrochloric acid as catalyst. This current acid mediated strategy is beneficial because it eliminates the need for a metal catalyst, promoter or additives in the reaction, simplifies isolation and purification. Notably, this approach conventionally used to synthesize molecules on gram scales with excellent yields and a high tolerance for functional groups.
Copper promoted aerobic oxidative c(sp3)-c(sp3) bond cleavage of n-(2-(pyridin-2-yl)-ethyl)anilines
Yu, Yang,Zhang, Yong,Sun, Chengyu,Shi, Lei,Wang, Wei,Li, Hao
, p. 2725 - 2732 (2020/03/11)
A strategy of aerobic oxidative C(sp3)-C(sp3) bond cleavage of N-ethylaniline derivatives bearing azaarenes for the synthesis of N-aryl formamides has been developed. This approach was carried out smoothly with the CuI/TEMPO/air system to give N-aryl formamides in yields of 50-90%. With this methodology, a mutagenically active compound was constructed in 90% yield. Moreover, the reaction also provided a one-pot synthetic tool for accessing a promoter of hematopoietic stem cells by difunctionalization in 61% yield.
A capable cobalt nano-catalyst for the N-formylation of various amines and its biological activity studies
Habibi, Davood,Heydari, Somayyeh,Afsharfarnia, Mina
, (2017/10/06)
The Fe3O4 magnetic nanoparticles (Fe3O4 MNPs) were modified with 1,10-phenanthroline-5,6-diol and the relevant Co complex (Fe3O4@Phendiol@Co) synthesized as a nano-magnetic heterogeneous catalyst to be used for the N-formylation of various amines at room temperature under solvent-free conditions. Also, in order to find the better concept of the catalyst role, the N-formylation reaction was carried out by the use of ultrasound irradiation in the absence of the Co nano-catalyst and the results were compared. The catalyst characterized by different methods such as the elemental analysis (CHN), ICP, FT-IR, XRD, EDX, SEM, TEM, TG-DTA, VSM and XPS. In addition, the antioxidant and the antibacterial activities of the Fe3O4@Phendiol@Co nano-catalyst and its Phendiol ligand were in vitro screened by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and disc diffusion methods. Results showed that they possess strong antioxidant activity (IC50; 0.182?±?0.006?mg/ml) and good antibacterial potential in comparison to standards.