The present invention relates to pentafluoroethylating compositions, processes for obtaining them, and their use in pentafluoroethylation reactions.
本发明涉及五氟乙基化组合物,获取它们的过程,以及它们在五氟乙基化反应中的应用。
Synthesis of Perfluoroalkyl-Substituted Vinylcyclopropanes by Way of Enhanced Neighboring Group Participation
作者:Christopher B. Kelly、Michael A. Mercadante、Emma R. Carnaghan、Matthew J. Doherty、Diana C. Fager、John J. Hauck、Allyson E. MacInnis、Leon J. Tilley、Nicholas E. Leadbeater
DOI:10.1002/ejoc.201500565
日期:2015.7
homoallyl alcohols is disclosed. Destabilization of the cationic intermediate by the electron-withdrawing CF3 group greatly enhances neighboringgroupparticipation of the alkene, allowing ring closure to predominate. The reaction can be extended to the difluoromethyl and pentafluoroethyl group, enabling the preparation of a diverse array of fluoroalkyl-substituted vinylcyclopropanes.
Well-Defined CuC<sub>2</sub>F<sub>5</sub>Complexes and Pentafluoroethylation of Acid Chlorides
作者:Liubov I. Panferova、Fedor M. Miloserdov、Anton Lishchynskyi、Marta Martínez Belmonte、Jordi Benet-Buchholz、Vladimir V. Grushin
DOI:10.1002/anie.201500341
日期:2015.4.20
showing that the C2F5‐ligated Cu atom can be di‐ (5), tri‐ (2 and 3), and tetracoordinate (4). The mixed phen‐PPh3 complex 4 is a highly efficient fluoroalkylating agent for a broad variety of acidchlorides. This high‐yielding transformation represents the first general method for the synthesis of RCOC2F5 from the corresponding RCOCl.
制备了四个带有C 2 F 5配体的定义明确的Cu I络合物,并对其进行了全面表征:[(Ph 3 P)2 CuC 2 F 5 ](2),[(bpy)CuC 2 F 5 ](3) ,[(Ph 3 P)Cu(phen)C 2 F 5 ](4)和[(IPr *)CuC 2 F 5 ](5)。确定了全部四个的X射线结构,表明C 2 F 5连接的Cu原子可以是二(5),三(2和3)和四坐标(4)。混合的phen-PPh 3络合物4是一种高效的氟代烷基化剂,适用于多种酰氯。这种高产的转化代表了从相应的RCOCl合成RCOC 2 F 5的第一种通用方法。
Photoredox Generation of Carbon-Centered Radicals Enables the Construction of 1,1-Difluoroalkene Carbonyl Mimics
作者:Simon B. Lang、Rebecca J. Wiles、Christopher B. Kelly、Gary A. Molander
DOI:10.1002/anie.201709487
日期:2017.11.20
facile, scalable route to access functional‐group‐rich gem‐difluoroalkenes. Using visible‐light‐activated catalysts in conjunction with an arsenal of carbon‐radical precursors, an array of trifluoromethyl‐substituted alkenes undergoes radical defluorinative alkylation. Nonstabilized primary, secondary, and tertiary radicals can be used to install functional groups in a convergent manner, which would otherwise