Patent · US Expired

Process for the preparation of hydroxyalkylaminonitrobenzene derivatives

US5508467A · kind A · utility

1Cited by

2References

20Claims

0Family size

Assignee

Cassella Aktiengesellschaft · DE

Inventors

Wolfgang Bauer · Krefeld, DE
Klaus Delpy · Dietzenbach, DE
Andreas Bittner · Offenbach am Main, DE

Key dates

Filing date	Aug 22, 1994
Grant date	Apr 16, 1996
Priority date	—
Expiry date	Aug 22, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C213/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of compounds of the general formula I ##STR1## by reaction of compounds of the general formula II ##STR2## with compounds of the general formula III ##STR3## in inert aprotic solvents in the presence of a base and subsequent rearrangement of the resulting intermediate compound with an alkali metal hydroxide, characterized in that the intermediate compound is not isolated.

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