Title:
【発明の名称】芳香族ジアルキルジアミン類の製造方法
Document Type and Number:
Japanese Patent JPH07112987
Kind Code:
B2
Abstract:
A process for the preparation of aromatic dialkylamines of the formula (1) (1) in which R denotes an alkyl-C1-C6 group, X and Y each denote a hydrogen, fluorine or chlorine atom or a hydroxyl, alkyl-C1-C4, alkoxy-C1-C4, carboxyl, carbalkoxy-C1-C5, alkyl-C1-C4-CO-NH-, +TR sulfonic acid, alkyl-C1-C4 sulfonate, sulfamoyl, alkyl-C1-C4-sulfonyl, hydroxy-alkylene-C1-C4-sulfonyl, phenylsulfonyl, hydroxyphenylsulfonyl, alkyl-C1-C4-phenylsulfonyl or alkoxy-C1-C4-phenylsulfonyl group, wherein compounds of the formula (2) (2) in which R1 denotes a nitro or primary amino group, and X and Y have the mentioned meanings, are reductively dialkylated using at least equimolar amounts of an aldehyde of the formula (3) (3) in which R has the abovementioned meaning, in alcohols, alkylbenzenes, glycol ethers, fatty acid dialkylamides or fatty acid alkyl esters or fatty acid glycol esters, and using catalytically activated hydrogen in the presence of a precious metal catalyst of group 8 of the periodic table, if appropriate in the presence of catalytic amounts of a trialkyl-C1-C6-amine, at 50 DEG C. to 150 DEG C. at a pressure of 20 bar to 100 bar.
Inventors:
Theodor Papendhus
Walter Kiyun
Walter Kiyun
Application Number:
JP18355386A
Publication Date:
December 06, 1995
Filing Date:
August 06, 1986
Export Citation:
Assignee:
Hoechst Actien Gezershaft
International Classes:
C07B43/04; B01J23/00; B01J23/40; B01J27/00; B01J27/045; B01J31/00; B01J31/02; C07B31/00; C07B61/00; C07C67/00; C07C209/00; C07C209/26; C07C209/28; C07C209/36; C07C211/27; C07C211/44; C07C211/48; C07C213/00; C07C213/02; C07C215/76; C07C217/80; C07C217/84; C07C227/00; C07C227/04; C07C227/18; C07C229/54; C07C229/64; C07C231/00; C07C231/12; C07C233/43; C07C233/78; C07C313/00; C07C315/04; C07C317/36; C07C317/40; C07C317/48; (IPC1-7): C07B43/04; C07C209/26; C07C211/27; C07C211/48; C07C215/76; C07C217/80; C07C229/54; C07C231/00; C07C233/43; C07C233/78; C07C315/04; C07C317/36; C07C317/40; C07C317/48
Domestic Patent References:
| JP56140952A |
Attorney, Agent or Firm:
Mitsuyoshi Ezaki (1 person outside)