Ca(CF3CO2)2 efficiently catalyzed the selective ring-opening of epoxides by amines leading to the synthesis of β-aminoalcohols. The reaction works well with various aromatic and aliphatic amines under solvent-free conditions. Corresponding β-aminoalcohols were obtained in excellent yields with high regioselectivity. The catalyst was easily prepared by reaction of CaH2 in trifluoroacetic acid.
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Nano Lett
January 2025
College of Materials Science and Engineering, Hunan Joint International Laboratory of Advanced Materials and Technology of Clean Energy, Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China.
Int J Biol Macromol
December 2024
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, People's Republic of China. Electronic address:
Chemistry
December 2024
Research Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan.
Grafting carbon-based nanomaterials (CNMs) with polyglycerol (PG) improves their application potentials in biomedicine and electronics. Although "grafting from" method offers advantages over "grafting to" one in terms of operability and versatility, little is known about the reaction process of glycidol with the surface groups onto CNMs. By using graphene oxide (GO) as a multi-functional model material, we examined the reactivity of the surface groups on GO toward glycidol molecules via a set of model reactions.
View Article and Find Full Text PDFChemistry
December 2024
School of Pharmacy, Guangdong Pharmaceutical University (China), Guangzhou, Guangdong Province, China, 510006.
Among the various studies on CO utilization, the sustainable and cost-effective fixation of CO into cyclic carbonates remains one of the most intriguing subjects. To this end, a novel type of composite dicationic ionic liquid material, DIL@PDIL, was developed. This composite consists of a dicationic ionic liquid (DIL), DMAP[TMGH]Br, supported on a polymeric dicationic ionic liquid (PDIL), P-DVB/Im[TMGH]Br.
View Article and Find Full Text PDFChem Commun (Camb)
December 2024
College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
This paper describes a ferric nitrene/photoredox dual-catalyzed anti-Markovnikov ring-opening of epoxides under neutral conditions for providing α-substituted acetophenones. A DFT-based calculation supported the reaction regioselectivity. The catalytic system could also be applied to the formation of C-O and C-N bonds nucleophilic functionalization of benzylic C-H bonds.
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