Petroleum Chemistry, Vol.46, No.2, 99-102, 2006
Reactivity correlation of alcohols in hydroalkoxycarbonylation and transesterirication reactions
The alcohol reactivity series in competitive cyclohexene hydroalkoxycarbonylation catalyzed by the Pd(PPh3)(2)Cl-2 complex in the presence of various alcohols was obtained: n-BuOH > n-PrOH > iso-BuOH >= CH3OH > C2H5OH > C6H11OH > iso-PrOH > C7H7OH. It was shown that this series correlates well with that of alcohol reactivity in the transesterification reaction. A stronger response of the transesterification rate to alcohol structure is caused by a lower reactivity of esters relative to phosphine acylpalladium complexes responsible for ester formation in the hydroalkoxycarbonylation reaction.