Patent · US Expired

Process for preparing N-aryl-N'-alkyl-piperazines

US5922874A · kind A · utility

0Cited by

5References

24Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Joachim Komoschinski · Neunburg vorm Wald, DE
Helmut Fiege · Leverkusen, DE
Bernhard Beitzke · Bensberg, DE

Key dates

Filing date	Jul 24, 1998
Grant date	Jul 13, 1999
Priority date	—
Expiry date	Jul 24, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D295/088
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

N-aryl-N'-alkyl-piperazines are obtained in a particularly simple manner, in good yields and in short reaction times when an aniline is reacted under pressure with an N-alkyl-bishydroxyethyl-amine in the presence of a strong acid.

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