Palladium Catalyzed Reaction of Bis(triisopropylsilyl)disulfide with Acetylenes
作者:Yves Gareau、Arturo Orellana
DOI:10.1055/s-1997-5774
日期:1997.7
The cross-coupling reaction of Bis(triisopropylsilyl)-disulfide on acetylenes yielded 1,2-alkylthioolefins after deprotection with TBAF and quenched with an electrophile.
Highly Stereoselective One-Pot Procedure To Prepare Bis- and Tris-chalcogenide Alkenes via Addition of Disulfides and Diselenides to Terminal Alkynes
作者:Angélica Venturini Moro、Cristina W. Nogueira、Nilda B. V. Barbosa、Paulo Henrique Menezes、João Batista Teixeira da Rocha、Gilson Zeni
DOI:10.1021/jo050448o
日期:2005.6.1
conditions, and the addition of dichalcogenides to alkynes occurred stereoselectively to give exclusively the corresponding Z isomers. We observed that the selectivity control was governed by the effective participation of the hydroxyl group from propargyl alcohols. In addition, the bis-chalcogenide alkenes were exclusively obtained with propargyl alcohol having the acidic hydroxyl group proton. Conversely