Information on the synthesis of monofunctionalized methanofullerenes C obtained by the addition-elimination mechanism is generalized. The main reagents for cyclopropanation, mechanisms and optimal conditions for the processes, and the prospects for practical application of the products are considered.
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http://dx.doi.org/10.1039/c9ra04036f | DOI Listing |
Anal Chem
January 2025
The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, China.
The position and configuration of the C═C bond have a significant impact on the spatial conformation of unsaturated lipids, which subsequently affects their biological functions. Double bond isomerization of lipids is an important mechanism of bacterial stress response, but its in-depth mechanistic study still lacks effective analytical tools. Here, we developed a visible-light-activated dual-pathway reaction system that enables simultaneous [2 + 2] cycloaddition and catalytic - isomerization of the C═C bond of unsaturated lipids via directly excited anthraquinone radicals.
View Article and Find Full Text PDFJ Phys Chem A
January 2025
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China.
Dimethyl sulfide (CHSCH) is the largest natural source of atmospheric sulfur. Bis(trifluoromethyl) sulfides (CFSCF) are one of the perfluorinated thioethers with great interest as the new refrigerant fluid and dielectric replacement gas for the sake of environmental concern. In order to clarify the effect of fluorine substitution, degradation mechanisms and kinetics for the reactions of CHSCH and CFSCF with OH radicals in the atmosphere have been calculated comprehensively in a comparative manner using various high-level methods.
View Article and Find Full Text PDFOrg Biomol Chem
December 2024
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, 1111 Budapest, Műegyetem rkp. 3, Hungary.
In the area of esterification of heteroatomic acids, after the microwave-assisted ionic liquid-catalyzed esterification of phosphinic acids, the esterification of arylsulfonic acids was also developed applying a 14-fold excess of alcohols at 200 °C in the presence of 10% butyl-methylimidazolium hexafluorophosphate as an additive. The esterifications were optimized, and the effect of the substituents in the aromatic ring was evaluated. At the same time, a similar procedure described by Mandal using only one equivalent of alcohol at 120 °C for 5 min in toluene was refuted.
View Article and Find Full Text PDFJ Org Chem
November 2024
School of Pharmacy, Changzhou University, Changzhou, Jiangsu 213164, P. R. China.
Environ Sci Technol
October 2024
State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
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