Stille Cross-Coupling of Activated Alkyltin Reagents under “Ligandless” Conditions
作者:Agnes Herve、Alain L. Rodriguez、Eric Fouquet
DOI:10.1021/jo047907q
日期:2005.3.1
Monoalkyltins activated by a fluoride source are shown to be as reactive as their vinyl or aryl homologues in the Stille coupling reaction, thus providing an easy entry into the pallado-catalyzed formation of Csp3−Csp2 bonds. In addition to this uncommon reactivity, this methodology holds several advantages such as (i) a quantitative preparation of stable and easy to handle alkyltin reagents 2, (ii) a simplified
Palladium catalyzed coupling reactions of β-perfluoroalkyl-substituted alkyl halides with organostannanes
作者:Rie Shimizu、Takamasa Fuchikami
DOI:10.1016/0040-4039(96)01922-3
日期:1996.11
β-Perfluoroalkyl-substituted alkylhalides reacted with organostamnanes such as allylphenylethynyl-, β-phenylethenyl-, and phenyl-tributyltin in the presence of palladium-phosphine complexes to give the corresponding cross-coupling products in good yields. When the reaction was carried out under CO pressure, carbonylative coupling of the halides took place affording the corresponding fluorine-contaming
Copper catalyzed grignard cross-coupling reaction with β-perfluoroalkyl-substituted alkyl halides
作者:Rie Shimizu、Eiichi Yoneda、Takamasa Fuchikami
DOI:10.1016/0040-4039(96)01155-0
日期:1996.7
Coupling reaction of β-perfluoroalkyl-substituted alkylhalides with Grignardreagents such as phenyl-, vinyl-, allyl-, benzyl-, and alkyl-magnesium halides was catalyzed by copper salts or complexes to give the corresponding cross-coupling products in good yields. α,ω-Diiodoalkane bearing a polyfluoroalkylene moiety also reacted with 2 equiv. of Grignardreagent in the presence of copper catalyst
(Me<sub>3</sub>Si)<sub>3</sub>SiH-Mediated Intermolecular Radical Perfluoroalkylation Reactions of Olefins in Water
作者:Sebastián Barata-Vallejo、Al Postigo
DOI:10.1021/jo100901z
日期:2010.9.17
the best radical initiator. We also found that water exerts a relevant solvent effect on the rates of perfluoroalkyl radical additions onto double bonds and the H atom abstraction from the silane. Our account provides a versatile and convenient method to achieve perfluoroalkylation reactions of alkenes in water to render perfluoroalkylated alkanes as key intermediates in the synthesis of fluorophors and