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
Rapid Microwave‐Promoted Base‐Free Suzuki Coupling Reaction of Sodium Tetraphenylborate with Hypervalent Iodonium Compounds in Water
作者:Jie Yan、Zhongshi Zhou、Min Zhu
DOI:10.1080/00397910600588454
日期:2006.6.1
Abstract The palladium chloride–catalyzed Suzuki couplingreaction of sodium tetraphenylborate with hypervalent iodonium salts and iodanes was achieved under microwave irradiation in water without base. A convenient and rapid method for formation of carbon–carbon bonds had excellent yields.
An efficient and general protocol for the synthesis of diarylsulfones via the metal-free coupling of readily available diaryliodonium salts and arenesulfinates in PEG-400 under microwave irradiation has been developed. Utilizing this metal-free and eco-friendly protocol, we have prepared various diarylsulfones in high yields and shorter reaction times under mild conditions. Furthermore, the coupling
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.