Conjugated Diene-Assisted Allylic C−H Bond Activation: Cationic Rh(I)-Catalyzed Syntheses of Polysubstituted Tetrahydropyrroles, Tetrahydrofurans, and Cyclopentanes from Ene-2-Dienes
作者:Qian Li、Zhi-Xiang Yu
DOI:10.1021/ja100409b
日期:2010.4.7
activation of allylic C-H bonds and their subsequent insertion into the alkene moieties of conjugateddienes. This novel C-H activation/alkene insertionreaction provides an efficient way to synthesize polysubstituted tetrahydropyrroles, tetrahydrofurans, and cyclopentanes with quaternary carbon centers. Preliminary mechanistic studies using D-labeling experiments have revealed that allylic C-H activation
A Broadly Applicable Method for Pd-Catalyzed Carboperfluoro-alkylation of Terminal and Internal Alkynes: A Convenient Route to Tri- and Tetrasubstituted Olefins
作者:Sylwester Domański、Wojciech Chaładaj
DOI:10.1021/acscatal.6b00777
日期:2016.6.3
A three-component Pd-catalyzed difunctionalization of internal and terminal alkynes with iodoperfluoroalkanes and boronic acids is reported here. Under low catalyst loading and mild reaction conditions, perfluoroalkylated tri- and tetrasubstitutedolefins were obtained in very good yields and in excellent regio- and stereoselectivities.