Patent · US Expired

Method for producing aminoalkoxy benzylamines and aminoalkoxy benzonitriles as intermediates

US7256312B2 · kind B2 · utility

0Cited by

9References

17Claims

0Family size

Assignee

BASF SE

Inventors

Oliver Lober · Alzey, DE
Christoph Benisch · Mannheim, DE
Klaus Ebel · Lampertheim, DE
Johann-Peter Melder · Schifferstadt, DE

Key dates

Filing date	Jul 18, 2003
Grant date	Aug 14, 2007
Priority date	—
Expiry date	Apr 29, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C253/30
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for preparing 4-[aminoalkoxy]benzylamines of the general formula (I)by catalytically hydrogenating 4-[aminoalkoxy]benzonitriles of the general formula (II)where, in the compounds of the general formulae I and II, R1 is C1-C8-alkylene, R2 and R3 are each independently C1-C8-alkyl or are joined to give a ring which may additionally contain a heteroatom, which comprises carrying out the hydrogenation at elevated pressure and elevated temperatures. The invention further relates to a process for preparing the intermediate (II).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.