Oxidative C–S Bond Cleavage of Benzyl Thiols Enabled by Visible-Light-Mediated Silver(II) Complexes
作者:Boseok Hong、Kim Christopher C. Aganda、Anna Lee
DOI:10.1021/acs.orglett.0c01399
日期:2020.6.5
The oxidative cleavage reaction of the C–Sbond using singlet oxygen is challenging because of its uncontrollable nature. We have developed a novel method for the singlet-oxygen-mediated selective C–Sbond cleavage reaction using silver(II)–ligand complexes. Visible-light-induced silver catalysis enables the controlled oxidative cleavage of benzyl thiols to afford carbonyl compounds, such as aldehydes
Oxidative N-deprotection of 2-azetidinones using silver(II)–persulfate complexes as a twin oxidant/co-oxidant
作者:Maaroof Zarei
DOI:10.1016/j.tetlet.2013.05.124
日期:2013.8
N-p-Methoxyphenyl, N-p-ethoxyphenyl, N-4-methoxynaphth-1-yl, and N-p-methoxybenzyl 2-azetidinones readily undergo oxidative N-dearylation to afford NH-2-azetidinones using a silver(II)–persulfate complex. The ease of preparation and stability of the reagents, neutrality of the reaction medium, fast conversions, good-to-excellent yields of products, and the mildness of the reaction conditions are some
Equilibria in complexes of N-heterocyclic molecules. Part 29. An electron spin resonance study of some N-heterocyclic complex ions of silver(II)
作者:Jeffrey C. Evans、R. D. Gillard、Robert J. Lancashire、Peter H. Morgan
DOI:10.1039/dt9800001277
日期:——
A critical assessment of the e.s.r. parameters for complex compounds of the silver(II) ion with the N-heterocyclic donors pyridine, 2,2′-bipyridyl, and 1,10-phenanthroline is presented. In previous reports, nitric acid has often been used as an ‘inert’ solvent; this is wrong. Protons and silver(II) ions compete for the ligands, equilibria being fairly rapidly established. Species studied in nitric