EFFECT OF COMPOSITION OF THE AQUEOUS-PHASE ON CATALYTIC PROPERTIES OFRHCL3 MODIFIED WITH A POLYCATION IN HYDROFORMYLATION OF 1-HEXENE

Water-soluble catalytic systems based on RhCl3 and the salts of polyca tions (poly-N,N-diallyl-N,N-dimethylammonium chloride and poly-N,N-dia liyl-N-methylaminodihydrophosphate) have been studied. It has been est ablished that the rate of hydroformylation of 1-hexene increases with increasing pH of the aqueous phase. The replacement of the alkyl group at the nitrogen atom with the hydrogen atom in a polycation makes it possible to form a stable catalytic system at pH greater than or equal to 5. The addition of low molecular electrolytes (NaCl, Na2SO4, and N aPO4) also affects the catalytic properties of the studied catalytic s ystems. Stability of a catalytic system is enhanced with increasing ch arge of an anion of a low molecular electrolyte, which is, apparently, due to formation of intra- and intermolecular bonds in polyelectrolyt es.