Copper catalyzed oxidative coupling reactions for trifluoromethylselenolations – synthesis of R-SeCF3compounds using air stable tetramethylammonium trifluoromethylselenate
Nickel-Catalyzed Trifluoromethylselenolation of Aryl Halides Using the Readily Available [Me<sub>4</sub>N][SeCF<sub>3</sub>] Salt
作者:Jia-Bin Han、Tao Dong、David A. Vicic、Cheng-Pan Zhang
DOI:10.1021/acs.orglett.7b01839
日期:2017.7.21
efficient method for the construction of aryl trifluoromethylselenoethersfrom the corresponding aryl halides in the presence of Ni(COD)2 and an appropriate ligand is reported. Various aryl iodides, bromides, and chlorides were smoothly converted in this reaction by simply varying the ligand, which afforded aryl and heteroaryl trifluoromethylselenoethers in good to almost quantitative yields. The reaction
Copper-Catalyzed Trifluoromethylselenolation of Aryl and Alkyl Halides: The Silver Effect in Transmetalation
作者:Chaohuang Chen、Chuanqi Hou、Yuguang Wang、T. S. Andy Hor、Zhiqiang Weng
DOI:10.1021/ol403406y
日期:2014.1.17
A catalytic trifluoromethylselenolation of aryl and alkylhalides by a Cu(I) catalyst has been developed. A key intermediate, [(phen)Cu(SeCF3)]2 (5) was successfully isolated and characterized by X-ray diffraction. The important role of silver in the transmetalation process during the catalytic cycle was elucidated. A wide range of trifluoromethylselanes have been prepared from readily available starting
of catalysis at dinuclear PdI sites, we herein report the application of this concept to the realization of the first catalytic method to convert aryliodides into the corresponding ArSeCF3 compounds. HighlyefficientCSeCF3 coupling of a range of aryliodides was achieved, enabled by an air‐, moisture‐, and thermally stable dinuclear PdI catalyst. The novel SeCF3‐bridged dinuclear PdI complex 3 was
Perfluoroalkyl Selenoxides, Selenones and Selenoximines: General Preparation and Properties
作者:Arnaud de Zordo‐Banliat、Kevin Grollier、Nicolas Vanthuyne、Sébastien Floquet、Thierry Billard、Guillaume Dagousset、Bruce Pégot、Emmanuel Magnier
DOI:10.1002/anie.202300951
日期:2023.3.13
perfluoroalkyl selenoxides, selenones and selenoximines was possible through a selective oxidation of perfluoroalkyl selenoethers. Synthesis of perfluoroalkyl selenoxides was also described via a two-step one-pot reaction from selenocyanates. The perfluoroalkyl selenoximine family was synthesized. The Hansch-Leo parameters of the compounds were determined and some aryl perfluoroalkyl selenoxides were separated
Copper catalyzed oxidative coupling reactions for trifluoromethylselenolations – synthesis of R-SeCF<sub>3</sub>compounds using air stable tetramethylammonium trifluoromethylselenate
作者:Quentin Lefebvre、Roman Pluta、Magnus Rueping
DOI:10.1039/c4cc10212f
日期:——
The aerobic, room-temperature coupling of tetramethylammonium trifluoromethylselenate with readily available boronic acids, boronic esters, and terminal alkynes has been developed.