Reaction Kinetics and Catalysis Letters, Vol.88, No.1, 143-148, 2006
Catalyst concentration effect on the hydroesterification and hydroformylation-acetalization of 1-hexene by a Rh complex
The complex, [Rh(COD)(4-picoline)(2)](PF6) (COD=1,5-cyclooctadiene), immobilized on poly(4-vinylpyridine) in contact with methanol catalyzes the hydroesterification and hydroformylation-acetalization of 1-hexene to methylheptanoate, heptanal and 1,1-dimethoxyheptane, respectively. The by-product, 1,1-dimethoxyheptane comes from the nucleophilic addition of methanol over the heptanal formed. Also, H, and CO, from the water gas shift reaction (WGSR) are observed. The catalytic activity for the hydroformylation and the WGSR proved to be non-linear in the rhodium total concentration range 0.9-5.0 wt.%.