TiCl4-Mediated Nucleophilic Substitution of Propargylic Esters
作者:R Mahrwald、S Quint
DOI:10.1016/s0040-4020(00)00652-9
日期:2000.9
Direct displacement reactions of propargylic esters are reported. 10 mol% of TiCl4 were used to carry out a nucleophilicsubstitution. Scope and limitation of this novel reaction are described.
A novel palladium-catalyzed approach to 2-amino ketones from arylpropargylic carbonates bearing neutral, electron-rich, and electron-poor aromatic rings and cyclic secondaryamines containing useful functional groups such as cyano, chloro, and bromo substituents has been developed.
Rhenium-catalyzed Coupling of 2-Propynyl Alcohols and Several Nucleophiles via Dehydration
作者:Yoichiro Kuninobu、Hirokazu Ueda、Kazuhiko Takai
DOI:10.1246/cl.2008.878
日期:2008.8.5
Treatment of 2-propynyl alcohols with several nucleophiles in the presence of a catalytic amount of a rhenium complex, [ReBr(CO)3(thf)]2, gave coupling products via dehydration. In these reactions, C–C, C–O, and C–S bonds can be constructed under mild conditions.
A DDQ-promoted metal-free cross-coupling of 1,3-diarylpropynes with hydroxyl via Sp3 C–H bond activation to form C–O bond
作者:Hanjie Mo、Weiliang Bao
DOI:10.1016/j.tet.2011.05.030
日期:2011.7
A metal-free coupling reaction between 1,3-diarylpropynes and alcohols/phenols/acids via propargylic sp3 C–H bonds activation and C–O bond formation reaction promoted by DDQ was realized. The reaction afforded series of propargylethers, propargyl esters and propargyl ketals.