Carbonylation of olefins by carbon monoxide and alcohols in the presence of Pd-complex catalytic system

In order to develop new, efficient and environmentally friendly methods for the preparation of practically valuable esters carboxylic acids, studies hydroalkoxycarbonylation reaction a number terminal olefins normal structure (hexene-1, heptene-1, octene-1, nonene-1) with carbon monoxide alcohols in presence metal complex catalysts based on palladium phosphine complexes at low pressures (≤ 20 atm).Two-and three-component systems PdCl 2 Pd(Acac) , (PPh 3 ) Pd(PPh 4 containing free ligand as stabilizer Bronsted acid (TsOH) promoter were studied catalysts. It was shown that only -PPh -TsOH, -TsOH have highest catalytic activity reactions. found α-olefins proceeds formation mixture linear branched products. The influence various conditions (the ratio initial reagents components systems, temperature, CO pressure, duration) course process yield target products investigated. optimal parameters reactions been found.