Process for the preparation of (hetero)arylalk(en/in)ylamines and (hetero)arylalkinylamines

US5283363A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Dietmar Kuhnt · Burscheid, DE
• Thomas Himmler · Odenthal, DE
• Heinz Ziemann · Leichlingen, DE

Key dates

• Filing date: Jan 16, 1992
• Grant date: Feb 1, 1994
• Expiry date: Jan 16, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D319/20
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a new process for the preparation of (hetero)arylalk(en/in)ylamines of the formula (I) ##STR1## in which A represents ethane-1,2-diyl (ethylene, dimethylene, --CH.sub.2 --CH.sub.2 --) or represents ethene-1,2-diyl (ethenylene, vinylene, --CH.dbd.CH--) or represents ethine-1,2-diyl (ethinylene, --C.ident.C--), characterized in that PA0 (a) in the event that, in formula (I), A represents ethine-1,2-diyl, halogeno(hetero)aryl compounds of the general formula (II) EQU Ar--X (II) are reacted with aminoalkinyl compounds of the general formula (III) ##STR2## and, if appropriate, (b) in the event that, in formula (I), A represents ethane-1,2-diyl or ethene-1,2-diyl, the new (hetero)aralkinylamines which are obtained by the process step described under (a), of the general formula (Ia), ##STR3## are reacted with a hydrogenating agent, if appropriate in the presence of a catalyst and if appropriate in the presence of a diluent, the definitions applying to Ar, R.sup.1, R.sup.2 and X being those mentioned in the description, and their use as intermediates for medicoments and plant protection agents, in this case in particular herbicides.