Palladium-catalyzed 1,4-addition of terminal alkynes to unsaturated carbonyl compounds promoted by electron-rich ligands
作者:Lei Zhou、Liang Chen、Rachid Skouta、Huan-feng Jiang、Chao-Jun Li
DOI:10.1039/b805946m
日期:——
The efficient palladium-catalyzed conjugate addition of terminal alkynes to α,β-unsaturated carbonyl compounds has been developed using electron-rich ligands, producing the corresponding γ,δ-alkynyl ketone and γ,δ-alkynyl esters in good yields.
Catalytic and Highly Efficient 1,4-Addition of Terminal Alkynes to Conjugated Enones by [RuCl<sub>2</sub>(<i>p</i>-cymene)]<sub>2</sub>/Pyrrolidine
作者:Sukbok Chang、Youngim Na、Eunjung Choi、Sunggak Kim
DOI:10.1021/ol016047m
日期:2001.6.1
[reaction: see text] A wide range of terminalalkynes was added to conjugated enones in a 1,4-fashion by a ruthenium catalyst in the presence of catalytic amounts of an amine base, and the corresponding gamma,delta-alkynyl ketones were obtained in good to excellent yields.
The first palladium-catalyzed 1,4-addition of terminal alkynes to conjugated enones
作者:Liang Chen、Chao-Jun Li
DOI:10.1039/b407936a
日期:——
The first palladium-catalyzed 1,4-addition of terminalalkynes to conjugatedenones has been developed in water and in acetone, producing the corresponding gamma,delta-alkynyl ketones in high yields.