Palladium-Catalyzed Intermolecular Ditrifluoromethoxylation of Unactivated Alkenes: CF<sub>3</sub>O-Palladation Initiated by Pd(IV)
作者:Chaohuang Chen、Yixin Luo、Liang Fu、Pinhong Chen、Yu Lan、Guosheng Liu
DOI:10.1021/jacs.7b11470
日期:2018.1.31
A novel palladium-catalyzedintermolecular ditrifluoromethoxylation of unactivatedalkenes has been developed, using a new electrophilic reagent, SelectfluorCN, as a strong oxidant, and AgOCF3 as a trifluoromethoxide source. Preliminary mechanistic studies revealed that the reaction was possibly initiated by Pd(IV) species, and an unusual cis-addition of CF3O-Pd(IV) into the double bond leads to the
Palladium-Catalyzed Alkene Carboamination Reactions of Electron-Poor Nitrogen Nucleophiles
作者:Luke J. Peterson、John P. Wolfe
DOI:10.1002/adsc.201500334
日期:2015.7.6
Modified reaction conditions that facilitate Pd‐catalyzed alkene carboamination reactions of electron‐deficient nitrogennucleophiles are reported. Pent‐4‐enylamine derivatives bearing N‐tosyl or N‐trifluoroacetyl groups are coupled with aryl triflates to afford substituted pyrrolidines in good yield. These reactions proceed via a mechanism involving anti‐aminopalladation of the alkene, which differs
Gold-Catalyzed Three-Component Coupling: Oxidative Oxyarylation of Alkenes
作者:Asa D. Melhado、William E. Brenzovich、Aaron D. Lackner、F. Dean Toste
DOI:10.1021/ja1034123
日期:2010.7.7
The three-component coupling of terminal alkenes with arylboronic acids and oxygen nucleophiles is described. The reaction employs a binuclear gold(I) bromide as a catalyst and Selectfluor reagent as the stoichiometric oxidant. Alcohols, carboxylic acids, and water can be employed as oxygen nucleophiles, thus providing an efficient entry into B-aryl ethers, esters, and alcohols from alkenes.