FIELD: chemical technology.
SUBSTANCE: invention relates to a method for the hydrocyaniding reaction of unsaturated compounds. Method involves at least one step of the hydrocyaniding reaction in the presence of catalytic system comprising metalloorganic complex. Complex comprises one or some organophosphorus ligands of monodentate organophosphite type, one or some bidentate organophosphorus ligands, and, optionally, a promoter of Lewis acid type. Also, method involves the separating step by distillation of reagent used in the method, or compound synthesized during the hydrocyaniding reaction from medium containing the above indicated catalytic system. Medium subjected for the separating step by distillation shows the ratio of mole of organophosphorus ligands expressed as number of phosphorus atoms to number of metal atoms less or equal 15, and/or the mass ratio of the metal content forming the metalloorganic complex less or equal 1.3%. The vat temperature in the distillation step is lower or equal 180°C. Method provides separating and extracting catalyst and final substances with minimal loss of compounds forming the catalytic system.
EFFECT: improved hydrocyaniding method.
15 cl, 2 ex
