An intramolecular annulation strategy has been developed for the synthesis of fluoroalkylated indane-type analogs. The difluoromethyl and trifluoromethyl functional motifs could be derived from gem-difluoroalkenes through this palladium-catalyzed reaction. This method is also extendable to other fluoroalkenes and multi-component reactions.
SEMMELHACK M. F.; BARGAR T., J. AMER. CHEM. SOC., 1980, 102, NO 26, 7765-7774
作者:SEMMELHACK M. F.、 BARGAR T.
DOI:——
日期:——
Photostimulated nucleophilic aromatic substitution for halides with carbon nucleophiles. Preparative and mechanistic aspects
作者:M. F. Semmelhack、Thomas Bargar
DOI:10.1021/ja00546a021
日期:1980.12
Palladium‐Catalyzed Defluorinative Coupling of Difluoroalkenes and Aryl Boronic Acids for Ketone Synthesis
作者:Guangwu Sun、Herui Liu、Xiu Wang、Wenbo Zhang、Wenjun Miao、Qinyu Luo、Bing Gao、Jinbo Hu
DOI:10.1002/anie.202213646
日期:2023.1.2
A palladium-catalyzed defluorinative coupling reaction of gem-difluoroalkenes and arylboronicacids affords ketones with an α-all-carbon quaternary center. The vinyl difluoromethylene motif serves as an in situ carbonyl precursor that is unprecedented in transition-metal-catalyzed coupling reactions. The key difluoroalkyl palladium(II) RCF2−PdII intermediate and related organometallic species were
钯催化的偕二氟烯烃和芳基硼酸的脱氟偶联反应提供了具有 α-全碳季中心的酮。乙烯基二氟亚甲基基序用作原位羰基前体,这在过渡金属催化的偶联反应中是前所未有的。关键的二氟烷基钯 (II) RCF 2 -Pd II中间体和相关的有机金属物种得到了充分表征。