SULFOXIDATION CATALYSTS AND METHODS FOR THEIR PREPARATION AND USE
申请人:INDIAN INSTITUTE OF TECHNOLOGY MADRAS
公开号:US20160251388A1
公开(公告)日:2016-09-01
Methods and compositions of catalysts for sulfoxidation reaction processes are disclosed. The sulfoxidation reaction process can be performed in an aqueous medium, and the catalysts can be recycled for further use. In some embodiments, a method of making a catalyst may include contacting a transition metal compound with an oxidizing agent to form a first solution, contacting a carboxylic acid compound with a cationic surfactant to form a second solution, mixing the first solution and the second solution to form a precipitate, and isolating the precipitate.
Kinetic and Product Study of the S‐oxidation vs HAT Chemoselectivity in Reactions Promoted by Nonheme Iron(IV)‐oxo Complex/NHPI Mediator System
作者:Marika Di Berto Mancini、Marianna Bernardini、Beniamin Emanuel Birzu、Arianna De Santis、Stefano Di Stefano、Federico Frateloreto、Daria Khaksar、Andrea Lapi、Giorgio Olivo、Osvaldo Lanzalunga
DOI:10.1002/ejoc.202300360
日期:2023.8.7
alkylaromatics and benzylic alcohols promoted by the nonheme iron(IV)-oxo complex [(N4Py)FeIV(O)]2+ either alone or in the presence of N-hydroxyphthalimide (NHPI) mediator indicate a general preference for the S-oxidation in the absence of the mediator while hydrogen atom transfer (HAT) is favored in the reactions promoted by phthalimide-N-oxyl radical deriving from NHPI oxidation by [(N4Py)FeIV(O)]2+.
单独使用或在N-羟基邻苯二甲酰亚胺 (NHPI) 介体存在下,非血红素铁 (IV)-氧配合物 [(N4Py)Fe IV (O)] 2+促进芳基硫醚、烷基芳香族化合物和苯甲醇的氧化,表明普遍偏好在没有介体的情况下进行S-氧化,而氢原子转移(HAT)有利于由邻苯二甲酰亚胺-N-氧基自由基促进的反应,该自由基源自[(N4Py)Fe IV (O)] 2+的NHPI氧化。