METHOD FOR DIRECT AMINATION OF AMMONIA ALCOHOLS TO PRIMARY AMINES USING THE CATALYTIC SYSTEM BASED ON XANTHOS

摘要

1. A method for producing primary amines, comprising the following process steps: A) preparing an alcohol solution in a liquid, non-gaseous phase, B) bringing this phase into contact with free ammonia and / or at least one ammonia releasing compound and a homogeneous catalytic system containing at least one xanthosic ligand of the general formula 1 and one transition metal compound, wherein R, R, R and R are independently the same or different and are selected from the group consisting of phenyl, tert-butyl, isopropyl, and is selected from the group consisting of —C (CH) - —CHCH—, —Si (CH) -, —S—, —O—, —C (C (CH)) - and, if necessary, C) isolation of the primary amine formed at stages of process B) .2. The method according to claim 1, characterized in that at the stage of the process B) xanthosome ligands are used in which R = R = R = R = phenyl and A = —C (CH) -. 3. The method according to claim 1, characterized in that at the stage of process B), xanthoside ligand - carbonylchlorohydrido [9,9-dimethyl-4,5-bis (diphenylphosphino) xantheno] ruthenium (II)] is used. The method according to claim 1, characterized in that the alcohol used in the process step A) is selected from the group of aliphatic, linear ω-hydroxycarboxylic acids with a carbon chain comprising at least 8 carbon atoms. The method according to claim 1, characterized in that the alcohol is used in a concentration in the range between 0.1 and 1000 mmol / L, preferably between 0.1 and 100 mmol / L, and particularly preferably between 0.1 and 10 mmol / L, in terms of liquid phase. 6. The method according to claim 1, characterized in that at the stage of process B) liquid or supercritical ammonia and / or a solution of ammonium salts in a solvent are used. The method according to claim 1, characterized in that at the stage of the process B) ammonia, in terms of