6293-68-1Relevant academic research and scientific papers
CuBr catalyzed C-N cross coupling reaction of purines and diaryliodonium salts to 9-arylpurines
Niu, Hong-Ying,Xia, Chao,Qu, Gui-Rong,Zhang, Qian,Jiang, Yi,Mao, Run-Ze,Li, De-Yang,Guo, Hai-Ming
supporting information; experimental part, p. 5039 - 5042 (2011/08/07)
CuBr was found to be an efficient catalyst for the C-N cross coupling reaction of purine and diaryliodonium salts. 9-Arylpurines were synthesized in excellent yields with short reaction times (2.5 h). The method represents an alternative to the synthesis of 9-arylpurines via Cu(ii) catalyzed C-N coupling reaction with arylboronic acids as arylating agents. The Royal Society of Chemistry 2011.
Facile syntheses of symmetrical diaryliodonium salts from various arenes, with sodium metaperiodate as the coupling reagent in acidic media
Kraszkiewicz, Lukasz,Skulski, Lech
experimental part, p. 2373 - 2380 (2009/04/14)
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 30% aqueous hydrogen peroxide (in boiling acetone, used both as a solvent and 'halogen scavenger') to give pure diaryliodonium tetrafluoroborates in 15-85% yields. Georg Thieme Verlag Stuttgart.
Method for preparing diaryl iodonium salts
-
, (2008/06/13)
Provided is a method for preparing diaryl iodonium salts represented by the formula: wherein Ar1 and Ar2 respectively are an aryl group which may be substituted with an electron donor group and which may be the same or different which comprises subjecting a compound represented by the formula Ar1 --H wherein Ar1 is as defined above and a compound Ar2 --I wherein Ar2 is as defined above to a coupling reaction in a sulfuric acid solution containing an oxidizing agent and diluted with a diluting agent to a concentration of 85% by weight or less at a reaction temperature in the range from -20° to +35° C.
