Health & Environmental Research Online (HERO)


Print Feedback Export to File
4705211 
Journal Article 
Effect of Electronic Factor in Ru-phosphine-diamine Complexes on Selective Hydrogenation of C=C and C=O Bonds 
Zhang Yu; Yu Xiaojun; Yu Changbin; Xia Yuqing; Li Ruixiang; Chen Hua; Li Xianjun 
2009 
Yes 
Chinese Journal of Chemistry
ISSN: 1001-604X 
27 
5 
937-943 
English 
WOS:000266449400015 
A series of ruthenium complexes bearing different phosphines and diamines were synthesized and their components and Structures were characterized by NMR spectra and elemental analyses. The catalytic properties of these complexes for the hydrogenation of benzylideneacetone and the mixture of acetophenone and styrene were investigated. The results showed that the basicity increase of phosphine or diamine dramatically facilitates the hydrogenation activity and selectivity to C=O double bond. On the contrary, the basicity decrease of phosphine or diamine not only slows down the catalytic activity, but also significantly Suppresses the hydrogenation selectivity to C=O double bond. Based on the effect of electron factors of these complexes on the hydrogenation activity and selectivity of benzylideneacetone and the mixture of styrene and acetophenone, the activation mechanism of dihydrogen in ruthenium-phosphine-diamine system was proposed. 
ruthenium complex; rhosphine; riamine; benzylideneacetone; hydrogenation