611-92-7Relevant articles and documents
Palladium-catalyzed decarbonylative C–N coupling to convert arylcarbamoyl chlorides to urea derivatives
Fan, Aihong,Peng, Jinsong,Zhou, Dun,Li, Xiang,Chen, Chunxia
supporting information, p. 1 - 12 (2020/07/27)
This paper describes the development of a palladium-catalyzed decarbonylative C–N coupling reaction that transforms arylcarbamoyl chlorides into tetrasubstituted ureas under a nitrogen atmosphere. A broad range of functional groups are compatible with this reaction, and diverse urea derivatives can be obtained with good to high yields.
Crystal Engineering of N,N′-Diphenylurea Compounds Featuring Phenyl-Perfluorophenyl Interaction
Yamasaki, Ryu,Iida, Mana,Ito, Ai,Fukuda, Kazuo,Tanatani, Aya,Kagechika, Hiroyuki,Masu, Hyuma,Okamoto, Iwao
, p. 5858 - 5866 (2017/11/07)
Here, aiming to adopt the phenyl-perfluorophenyl interaction to regulate molecular alignment and arrangement for crystal engineering, we examined and compared in detail the crystal structures of N,N′-diphenylurea compounds 1-6. We found that phenyl-perfluorophenyl interaction greatly influenced the intermolecular arrangement in the crystal, and we were able to prepare a cocrystal of 1 and 2, in which the molecules were alternately arranged under the control of the phenyl-perfluorophenyl interaction. This arrangement was driven by the asymmetric geometry of the hydrogen bonds in the cocrystal (1·2), in which 2, bearing two perfluorophenyl groups, worked as a better hydrogen bond donor. In contrast, NH connected to the phenyl group in 3 proved to be a better hydrogen bond donor due to the intramolecular resonance effect. N,N′-Dimethylated derivatives, 4-6, existed in cis-cis form in the crystal. Antiparallel carbonyl-carbonyl arrangements were observed in 4 and 6, while an unexpected carbonyl-perfluorophenyl interaction was observed in the crystal of 5. These findings will be helpful in the design of diphenylurea-based functional molecules, especially for solid-state application.
B(C6F5)3-catalyzed methylation of amines using CO2 as a C1 building block
Yang, Zhenzhen,Yu, Bo,Zhang, Hongye,Zhao, Yanfei,Ji, Guipeng,Ma, Zhishuang,Gao, Xiang,Liu, Zhimin
supporting information, p. 4189 - 4193 (2015/08/11)
B(C6F5)3 was proven to be an efficient metal-free catalyst for the methylation of amines using CO2 as a C1 building block in the presence of hydrosilanes under easy-handling conditions. A broad range of N-alkylanilines, dialkylamines and primary anilines all proceeded well under the catalytic conditions.
