Abstract: A catalyst and process for making same which is used for hydroformylation reactions by the conversion of an olifically unsaturated compound. The catalyst is prepared by the phosphochlorination of the polymer carrier in the presence of borontrifluoride or a borontrifluoride complex. The chlorophosphonyl groups are converted into phosphine or phosphite groups and the resultant groups are reacted with a catalytically active metal complex.

Abstract: An improved process for the conversion of allyl alcohol with hydrogen and carbon monoxide to form a reaction mixture containing hydroformylation products of 2-hydroxytetrahydrofuran and/or 4-hydroxybutyraldehyde. Allyl alcohol, hydrogen, and carbon monoxide are passed, in a gaseous phase, into contact with a catalyst comprised of a solid porous carrier material containing within its pores a solution of a catalytically active metalloorganic complex dissolved in at least one ligand-forming compound, which solution has a vapor pressure of less than 1.3 mbar under the reaction conditions applied. The improved process is preferably carried out on a continuous basis.