Method for producing ring-halogenated N,N-dialkylbenzylamines

A method for preparing compounds of the formula (I)

• in which
• n is 0, 1, 2 or 3
• the residues R1 are each independently a halogen atom bonded to the aromatic ring,
• the residues R2 are each independently C1-C8-alkyl, C6-C12-aryl or C7-C13-arylalkyl or both residues R2 together are a straight-chain or branched C3-C12-alkylene residue, which may optionally be interspersed by one or more oxygen atoms,
• the method comprising reacting compounds of the formula (II)
• with compounds of the formula (III)
• HN(R2)2
• where the residues R1 and R2 in the formulae (III) and (II) have the meanings stated under the formula (I), and
• X is chlorine, bromine, iodine, —OSO2—(C1-C6-alkyl) or —OSO2—(C1-C6-perfluoroalkyl)
• wherein:
• the molar ratio of compounds of the formula (III) to compounds of the formula (II) is 3:1 to 50:1;
• organic solvent is optionally used in an amount of 0% to 10% by weight, based on the sum of compounds of the formulae (II) and (III) used;
• water is used in the reaction in an amount of more than 10% by weight based on the amount of compound of the formula (II) used;
• and
• the reaction is conducted at a temperature of 90° C. to 180° C.