Metal-Free Iodoperfluoroalkylation: Photocatalysis versus Frustrated Lewis Pair Catalysis
作者:Constantin Czekelius、Lucas Helmecke、Michael Spittler、Bernd M. Schmidt
DOI:10.1055/s-0040-1707232
日期:2021.1
Professor Rolf Huisgen Abstract A comparison of two catalytic, metal-free iodoperfluoroalkylation protocols is presented. FrustratedLewispairs [ t Bu3P/B(C6F5)3] or phosphines/phosphites under visible light irradiation efficiently mediate the functionalization of non-activated alkenes and alkynes. A comprehensive account of the corresponding substrate scopes as well as insights into the mechanistic details
纪念Rolf Huisgen教授 抽象 比较了两种催化的,无金属的碘代氟烷基化方案。沮丧的路易斯对[ t Bu 3 P / B(C 6 F 5)3 ]或膦/亚磷酸盐在可见光辐射下有效地介导了未活化的烯烃和炔烃的官能化。提供了对相应底物范围的全面介绍,以及对两种反应途径的机理细节的见解。
The Different Faces of Photoredox Catalysts: Visible-Light-Mediated Atom Transfer Radical Addition (ATRA) Reactions of Perfluoroalkyl Iodides with Styrenes and Phenylacetylenes
作者:Thomas Rawner、Eugen Lutsker、Christian A. Kaiser、Oliver Reiser
DOI:10.1021/acscatal.8b00847
日期:2018.5.4
phenylacetylenes using readily available copper phenanthroline catalyst is reported. In contrast to commonly employed [Ru(bpy)3]Cl2, [Ru(phen)3]Cl2 or fac-Ir(ppy)3, [Cu(dap)2]Cl is capable to convert styrenes to the corresponding perfluoroalkyl tagged ethylbenzenes, pointing toward an additional role of the copper catalyst beyond photoinduced electron transfer. An inner sphere catalytic cycle involving Cu(III)
Stereoselective Synthesis of (<i>Z</i>)-Perfluoroalkyl-1-iodo-1-triisopropyl Silylalkenes: A Convenient Route to Perfluoroalkyl-Substituted Unsaturated Synthons
作者:Juan Francisco Chesa、Dolores Velasco、Francisco López-Calahorra
DOI:10.1080/00397910903161843
日期:2010.5.19
The quantitative and fully stereoselective synthesis of (Z)-perfluoroalkyl-1-iodo-1-triisopropylsilylalkenes and their easy, high-yielding transformation into the corresponding 1-iodo-2-perfluoroacetylenes and (Z)-2-perfluoroalkyl-1-iodo-1-alkenes, compounds of interest as synthons for classical organometallic chemistry or for metal-catalyzed coupling reactions, are discussed.