Isomerization of Electron-Poor Alkynes to the Corresponding (E, E)-1, 3-Dienes Using a Bifunctional Polymeric Catalyst Bearing Triphenylphosphine and Phenol …
CKW Kwong, MY Fu, HCH Law, PH Toy
文献索引：Kwong, Cathy Kar-Wing; Fu, Michael Yunyi; Law, Henry Chun-Hin; Toy, Patrick H. Synlett, 2010 , # 17 p. 2617 - 2620
Abstract The use of a bifunctional non-cross-linked polystyrene bearing both phosphine and phenol groups for the organocatalytic isomerization of alkynes bearing electron-withdrawing ester substituents to afford the corresponding (E, E)-dienes in excellent yield and stereoselectivity is described. When polystyrene functionalized with only phosphine groups was used as the catalyst, either low or no yield of the desired product was obtained. Thus ...
