671-15-8Relevant academic research and scientific papers
Activated charcoal supported copper nanoparticles: A readily available and inexpensive heterogeneous catalyst for the N-arylation of primary amides and lactams with aryl iodides
Zhao, Rong,Dong, Wenwen,Teng, Jiangge,Wang, Zhiwei,Wang, Yunzhong,Yang, Jianguo,Jia, Qiang,Chu, Changhu
supporting information, (2020/12/21)
A novel heterogeneous copper catalyst has been developed by supporting copper nanoparticles on activated charcoal via in situ reducing copper(II) with aqueous hydrazine as reductant. The characterization of Cu/C catalyst showed that the Cu0 nano-particles were formed on the surface of charcoal. This catalyst displayed good catalytic activities toward the N-arylation of primary amides and lactams with aryl iodides.
Studies towards the design and synthesis of novel 1,5-diaryl-1h-imidazole-4-carboxylic acids and 1,5-diaryl-1h-imidazole-4-carbohydrazides as host ledgf/p75 and hiv-1 integrase interaction inhibitors
Bode, Moira L.,Fish, Muhammad Q.,Mabel Coyanis, E.,Rashamuse, Thompho J.
, (2021/10/25)
Two targeted sets of novel 1,5-diaryl-1H-imidazole-4-carboxylic acids 10 and carbohy-drazides 11 were designed and synthesized from their corresponding ester intermediates 17, which were prepared via cycloaddition of ethyl isocyanoacetate 16 and diarylimi
Latent Bronsted Base Solvent-Assisted Amide Formation from Amines and Acid Chlorides
Otsuka, Rikuto,Maruhashi, Kazuo,Ohwada, Tomohiko
supporting information, p. 2041 - 2057 (2018/05/04)
Weakly basic amines, including even neutral amines such as nitroaniline and aminocarboxylic acids, react with acid chlorides very efficiently in N, N -dimethylacetamide (DMAC), without addition of a base, to give the corresponding amides in high yields. The role of DMAC and related solvents as latent Bronsted bases was studied in these amidation reactions. Less basic amines, such as aromatic amines, reacted with benzoyl chloride faster than more basic aliphatic amines.
Role of Hetero-halogen (F · · · X, X = Cl, Br, and I) or homo-halogen (X · · · X, X = F, Cl, Br, and I) interactions in substituted benzanilides
Nayak, Susanta K.,Kishore Reddy,Row, Tayur N. Guru,Chopra, Deepak
experimental part, p. 1578 - 1596 (2012/04/04)
A series of halogen-substituted benzanilides have been synthesized and characterized, and crystallization studies directed toward generation of polymorphs have been performed to delineate the importance of interactions involving halogens. The effect of ha
Facile cuI-catalyzed arylation of azoles and amides using simple enaminones as efficient ligands
Cheng, Cungui,Sun, Gonglei,Wan, Jieping,Sun, Cuirong
experimental part, p. 2663 - 2668 (2010/01/16)
(E)-3-(Dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one was found to be an excellent ligand for copper-catalyzed N-arylation of azoles and amides with aryl halides under mild conditions. The reaction took place at 82 C in MeCN with broad functional-group compatibility. A combination of the ligand and CuI proved to be an efficient catalytic system to promote the coupling reactions of aryl halides with azoles and amides.
