Selective hydrogenation of the internal double bond of penta-1,3-diene on a ZnO catalyst
Abstract
The hydrogenation of penta-1,3-diene has been studied over various catalysts (MoS2, ZnO, Cr2O3, and Co3O4) which normally lead to predominant 1,2- rather than 1,4-addition of hydrogen; ZnO led to hydrogenation of the internal double bond with high (87·3%) selectivity, by 3,4-addition.