Access to Perfluoroalkyl-Substituted Enones and Indolin-2-ones via Multicomponent Pd-Catalyzed Carbonylative Reactions
作者:Hongfei Yin、Troels Skrydstrup
DOI:10.1021/acs.joc.7b00942
日期:2017.6.16
A simple method for accessing perfluoroalkyl-substituted enones is described applying a four-component palladium-catalyzed carbonylative coupling of aryl boronic acids together with terminal alkynes and perfluoroalkyl iodides in the presence of carbon monoxide. A wide range of highly functionalized enones can thus be prepared in a single operation in good yields. With 2-aminophenylalkynes, an intramolecular
The copper‐mediated fluroalkylation/cyclization of N‐allyl anilines has been described with unactivated double bonds as the radical acceptor. The reaction provides an efficient and direct access to 3‐fluoroalkyl indolines in moderate to good yields. This protocol combines a simple experimental procedure with low‐costing fluoroalkylated sources and excellent functional group tolerance.
Palladium‐Catalyzed Carboperfluoroalkylation of Alkynes with Fluoroalkyl Iodides and Arylstannanes
作者:Nitinkumar Satyadev Upadhyay、Wojciech Chaładaj
DOI:10.1002/adsc.201901027
日期:2020.2.6
A tandem Pd‐catalyzed carboperfluoroalkylation through a sequence of iodoperfluoroalkylation and Stille coupling is presented. This novel three‐component transformation proceeds smoothly with excellent regio‐ and stereoselectivities, giving rise to fluoroalkyl‐substituted tri‐ and tetrasubstituted olefins.
Visible-light-promoted organic dye catalyzed perfluoroalkylation of hydrazones under mild conditions
作者:Ming-Dong Zhou、Zhen Peng、Lei Li、He Wang
DOI:10.1016/j.tetlet.2019.151124
日期:2019.10
A general and facile visible-light-promoted organic dye catalyzed perfluoroalkylation of hydrazones has been developed using inexpensive and non-toxic Eosin Y as the photoredox catalyst under mild conditions. This reaction protocol exhibits synthetic simplicity, broad scope of substrates, and excellent functional group compatibility. A gram scale synthesis can be also facilitated with a satisfactory
activation mode. Further importance of this reaction relies on its capacity to functionalize selectively both C‐5 and C‐8 positions of quinolines. This transformation, perfectly fulfilling green chemistry requirements, allows a truly practical and straightforward access to a variety of unprecedented functionalized amino‐ and amidoquinoline skeletons, presenting attractive features for medicinal and agrochemical