Barbier-type reactions of nitriles and alkyl iodides mediated by samarium(II) iodide in the presence of catalytic nickel(II) iodide
作者:Han-Young Kang、Sang-Eun Song
DOI:10.1016/s0040-4039(99)02194-2
日期:2000.2
The samarium(II) iodide-mediated intermolecular Barbier-type reactions of nitriles and alkyl iodides have been investigated. In the presence of a catalytic amount of nickel(II) iodide, the reaction proceeded smoothly to provide the corresponding ketones. Amides also reacted to give ketones under the same Barbier-type conditions.
A new preparation of methylenecyclopropanes utilizing trimethylsilyldiazomethane
作者:Atsushi Sakai、Toyohiko Aoyama、Takayuki Shioiri
DOI:10.1016/s0040-4020(98)01176-4
日期:1999.3
Reactions of aliphatic ketones with lithium trimethylsilyl-diazomethane in the presence of excess olefins afforded methylenecyclopropanes in moderate to good yields. The multiplicity of the alkylidene carbene intermediate in the reacting state has been revealed to be a singlet.
Iron‐Catalyzed Cross‐Coupling of Thioesters and Organomanganese Reagents**
作者:Valentin Jacob Geiger、Guillaume Lefèvre、Ivana Fleischer
DOI:10.1002/chem.202202212
日期:2022.11.7
development of an iron(III)-catalyzed coupling of thioesters with aliphatic organomanganese reagents. The good functional group tolerance resulted in successful transformation of a range of thioesters, including biologically relevant compounds. The presence of accessible β-hydrogen atom in the organomanganese reagent seems crucial for an effective catalyst activation. The liberated thiolate stabilizes the