alkylindium reagents with diaryliodonium salts proceeded efficiently in the presence of tetrakis(triphenylphosphine)palladium [Pd(PPh3)4], 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (SPhos), lithium tert-butoxide, and lithium chloride in DMA/THF (1:1) at 100 °C, leading to the corresponding cross-coupling products in moderate to good yield with broad substrate scope and wide functional group tolerance
One-pot synthesis of diaryliodonium salts from arenes and aryl iodides with Oxone–sulfuric acid
作者:Natalia Soldatova、Pavel Postnikov、Olga Kukurina、Viktor V Zhdankin、Akira Yoshimura、Thomas Wirth、Mekhman S Yusubov
DOI:10.3762/bjoc.14.70
日期:——
diaryliodonium salts utilizing Oxone as versatile and cheap oxidant has been developed. This method shows wide applicability and can be used for the preparation of iodonium salts containing electron-donating or electron-withdrawing groups in good yields. In addition, this procedure can be applied to the preparation of symmetric iodonium salts directly from arenes via a one-pot iodination-oxidation sequence.
Facile Syntheses of Symmetrical Diaryliodonium Salts from Various Arenes, with Sodium Metaperiodate as the Coupling Reagent in Acidic Media¹
作者:Lech Skulski、Lukasz Kraszkiewicz
DOI:10.1055/s-2008-1067169
日期:2008.8
An easy, inexpensive, safe, and effective preparative procedure to obtain symmetrical diaryliodonium bromides (in 17-88% crude yields) from various arenes is presented in this paper. A novel method for the in situ preparation of iodosyl sulfate (Chretien's reagent) is given. Eleven exemplary crude diaryliodonium bromides were readily oxidatively metathesized with 40% aqueous tetrafluoroboric acid and
A mild carbon–boron bond formation from diaryliodonium salts
作者:N. Miralles、R. M. Romero、E. Fernández、K. Muñiz
DOI:10.1039/c5cc04944j
日期:——
Metal-free borylation of diaryliodonium salts with diboron reagents toward formation of aryl boronic esters and concomitant two-step C–C coupling of both aryl groups of the initial diaryliodonium reagent.