Stereoselective hydrostannation of substituted alkynes with trineophyltin hydride

VI Dodero, LC Koll, SD Mandolesi…

Index: Dodero, Veronica I; Koll, Liliana C; Mandolesi, Sandra D; Podesta, Julio C Journal of Organometallic Chemistry, 2002 , vol. 650, # 1-2 p. 173 - 180

Full Text: HTML

Citation Number: 25

Abstract

Hydrostannation of mono-and disubstituted alkynes with trineophyltin hydride (1) leads to vinylstannanes in good to excellent yields, the configuration of the products depending on the reaction conditions. Thus, whereas hydrostannation under radical conditions leads stereoselectively to only one of the two possible products corresponding to an anti addition in 60–99% yield, the additions catalyzed by bis (triphenylphosphine) palladium dichloride ...