<i>Z</i>
‐Selective Fluoroalkenylation of (Hetero)Aromatic Systems by Iodonium Reagents in Palladium‐Catalyzed Directed C−H Activation
作者:Balázs L. Tóth、Gergő Sályi、Attila Domján、Orsolya Egyed、Attila Bényei、Zsombor Gonda、Zoltán Novák
DOI:10.1002/adsc.202101108
日期:2022.1.18
The direct and catalytic incorporation of fluorine containing molecular motifs into organic compounds resulting high-value added chemicals represents a rapidly evolving part of synthetic methodologies, thus this area is in the focus of pharmaceutical and agrochemical research. Herein we report a stereoselective procedure for direct fluorovinylation of aromatic and heteroaromatic scaffolds. This methodology
Reductive dehalogenation of polyhalofluorocarbons with tributyltin hydride
作者:Michael Van Der Puy、Randolph K. Belter、Ralph J. Borowski、Lois A.S. Ellis、Phillip J. Persichini、Andrew J. Poss、Theodore P. Rygas、Harry S. Tung
DOI:10.1016/0022-1139(94)03153-q
日期:1995.3
The reduction of polyhalofluorocarbons, including ClCF2CFClCF2Cl, (ClCF2CFCl)2, ICH2(CF2)3CH2I and vicinal dichloro-perfluorocycloalkanes, with tributyltinhydride gave the corresponding hydrofluorocarbons in good to excellent yield. The results are compared with similar reductions with other reducing agents, and to tin hydridereductions of non-fluorinated analogs.
Photocatalytic Palladium-Catalyzed Fluoroalkylation of Styrene Derivatives
作者:Réka Adamik、Tamás Földesi、Zoltán Novák
DOI:10.1021/acs.orglett.0c03043
日期:2020.10.16
A visible light induced palladium-catalyzed fluoroalkylation method was developed. The Heck-type alkyl coupling reaction enables the introduction of trifluoroethyl, difluoroethyl and other fluoroalkyl fragment into styrenes under mild reaction conditions without the use of additional photosensitizers and ensures access to fluoroalkylated olefins on a broad scale.