WebJun 28, 2024 · A water-soluble photocatalyst, lumiflavin, has been shown to induce oxidative coupling between a previously unreported phenoxazine dialdehyde tag and a single tyrosine site, even in the presence of... WebAug 3, 2024 · We report a direct C H alkylation of heteroarenes via photocatalytic decarboxylative couplings. A series of primary, secondary, tertiary alkyl carboxylic acids and drug-derived N-hydroxyphthalimide esters are selectively coupled with various electron-rich heteroarenes, including furans, benzofurans and thiophenes.
Carbon dioxide cycle via electrocatalysis: Electrochemical ...
WebFeb 1, 2024 · Remarkably, Xu and co-workers recently unveiled an efficient direct decarboxylative C–H alkylation of heteroaromatics via an electrophotocatalytic approach (Scheme 25) [103]. In their system, Ce(III) was initially oxidized to Ce(IV) which coordinated to carboxylic acid to form the putative cerium complex (97). An effective ligand-to-metal ... WebJun 30, 2024 · A novel and efficient free-radical-promoted copper-catalyzed decarboxylative alkylation of α,β-unsaturated carboxylic acids with ICH2CF3 and its analogues has been developed. This methodology provides a convenient access to the synthesis of allylic trifluoromethyl and β-CF3 ketone containing compounds as well as … kartoffelsuppe thermomix tm6
Photocatalytic decarboxylative alkylation of electron-rich …
WebApr 12, 2024 · Visible light- and gamma ray-induced alkylation in pyridine ring. Effective alkylation with visible light in the presence of iron(III) sulfate. ... Ligand-accelerated iron photocatalysis enabling decarboxylative alkylation of heteroarenes. Org. Lett., 21 (2024), pp. 4259-4265, 10.1021/acs.orglett.9b01439. View article Google Scholar. 16. WebAbstract. Redox-active esters (RAEs) as alkyl radical precursors have demonstrated great advantages for C–C bond formation. A decarboxylative cross-coupling method is described to afford substituted alkynes from various carboxylic acids using copper catalysts CuCl and Cu(acac) 2.The photoexcitation of copper acetylides with electron-rich NEt 3 3 WebOct 27, 2024 · Jia-Xin Wang. Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei, Anhui, 230026 China lawson ed