‘In situ’ Generated ‘HCl’ - An Efficient Catalyst for Solvent-Free Hantzsch Reaction at Room Temperature: Synthesis of New Dihydropyridine Glycoconjugates
Synthesis of Non‐Classical Arylated C‐Saccharides through Nickel/Photoredox Dual Catalysis
作者:Audrey Dumoulin、Jennifer K. Matsui、Álvaro Gutiérrez‐Bonet、Gary A. Molander
DOI:10.1002/anie.201802282
日期:2018.5.28
synthetic tools to introduce saccharide derivatives into functionally complex molecules is of great interest, particularly in the field of drug discovery. Herein, we report a new route toward highly functionalized, arylated saccharides, which involves nickel‐catalyzed cross‐coupling of photoredox‐generated saccharyl radicals with a range of aryl‐ and heteroaryl bromides, triggered by an organic photocatalyst
Synthesis of non-classical heteroaryl C-glycosides via Minisci-type alkylation of N-heteroarenes with 4-glycosyl-dihydropyridines
作者:Qingbing Wang、Juan Duan、Pingping Tang、Gong Chen、Gang He
DOI:10.1007/s11426-020-9813-5
日期:2020.11
A radical-mediated method was reported for diastereoselective synthesis of non-classical heteroarylC-glycosides via Minisci-type alkylation of N-heteroarenes with 4-glycosyl-1,4-dihydropyridine (DHP) reagents. These DHP reagents serve as convenient precursors for various glycosyl radicals under the activation of single electron transfer (SET) oxidation by persulfate and visible light irradiation with
Synthesis of non-anomeric <i>C</i>-glycosyl pyrazolidinone derivatives <i>via</i> visible-light photoredox catalysis
作者:Renan. O. Gonçalves、Pedro H. R. Oliveira、Iva S. de Jesus、Natalí P. Debia、Diogo S. Lüdtke、Márcio W. Paixão
DOI:10.1039/d3ob00775h
日期:——
4-dihydropyridines (DHPs) as radical precursors. The protocol features mild reaction conditions, scalability, broad substrate scope, and good functional group tolerance. Moreover, the resulting pyrazolidinone moiety can be easily deprotected, acylated or reduced into a glycosyl β-alanine analog.