721-47-1Relevant articles and documents
Effect of a rigid sulfonamide bond on molecular folding: A case study
Suhonen, Aku,Morgan, Ian S.,Nauha, Elisa,Helttunen, Kaisa,Tuononen, Heikki M.,Nissinen, Maija
, p. 2602 - 2608 (2015)
A disulfonamide compound with bulky aromatic side chains was prepared, and its properties as a potential building block for foldamers were evaluated. Two different solvate crystal forms of the compound were identified and compared to the structures of an
[Re(η6-C6H5-benzimidazole)2]+ and Derivatives as Dye Mimics; Synthesis, UV Absorption Studies and DFT Calculations
Gotzmann, Carla,Blacque, Olivier,Fox, Thomas,Alberto, Roger
supporting information, p. 2493 - 2498 (2021/06/01)
Functionalizations of highly oxidation and hydrolysis stable mono-cationic rhenium bis-arene complexes [Re(η6-C6H6)2]+ are of great interest. We directly built up structural features of the well-known Hoechst Dye on the coordinated arenes as a model for prospective DNA minor groove binding studies. Extensions of the aromatic bis-arene unit with functionalized and derivatized benzimidazole moieties resulted in a deep orange colour of the complexes, showing UV/Vis absorption spectra with multiple transition maxima. These have been assigned with support of DFT calculations to gain information about their charge transfer natures. The different transitions of the complexes, which are either intra-ligand, ligand-to-ligand or metal-to-ligand charge transitions, were additionally compared and discussed with the spectra of the corresponding free ligands.
Copper-catalyzed regioselective 2-amination of o-haloanilides with aqueous ammonia
Tang, Yan-Ling,Li, Mei-Ling,Gao, Jin-Chun,Sun, Yun,Qu, Lu,Huang, Feng,Mao, Ze-Wei
, (2021/04/02)
An efficient Cu(II)-vasicine catalytic system has been developed for intramolecular C[sbnd]N bond formation. In this way, regioselective 2-amination of o-haloanilides with aqueous ammonia in EtOH has been achieved. This strategy provides several advantages, such as good regioselectivity, high yields and functional group tolerance.