The methoxycarbonylation of cyclohexene has been carried out by using Pd metal deposited on a support as heterogeneous precursors instead of the homogeneous Pd(II) complexes usually proposed in literature. The two catalytic systems (homogeneous and heterogeneous) have been compared in methanol in the presence of free triphenylphosphine and p-toluenesulfonic acid as promoter. The precursor Pd on Amberlyst IRC 50 led to the best catalytic activity which is comparable to the activity obtained by using the homogeneous Pd(II)-catalyst. The leaching of the metal was negligible and the system has been efficiently recycled at least for three times. A reaction mechanism has been also proposed and discussed.

环己烯的甲氧基羰基化反应是通过使用沉积在载体上的Pd金属作为异质前体进行的，而不是通常在文献中提出的均相Pd（II）配合物。在游离三苯膦和对甲苯磺酸作为促进剂的存在下，在甲醇中比较了两种催化体系（均相和异相）。Amberlyst IRC 50上的前体Pd产生了最佳的催化活性，这与使用均相Pd（II）催化剂获得的活性相当。金属的浸出可以忽略不计，并且该系统已至少有效地循环了三次。还提出并讨论了反应机理。