公开(公告)号：DE2854428A1

公开(公告)日：1980-06-26

申请号：DE2854428

申请日：1978-12-16

Applicant: BASF AG

Inventor： DOCKNER TONI DIPL CHEM DR ,  KEMPE UWE DIPL CHEM DR ,  KRUG HERBERT ,  MAGNUSSEN PETER DIPL CHEM DR ,  PRAETORIUS WERNER DIPL CHEM DR ,  SZYMANSKI HANS JOACHIM

IPC: C07D233/06 ,  C07D233/08 ,  C07D233/10

Abstract: A novel process for the preparation of 2-imidazolines by reacting 1,2-diamines with nitriles or carbonyl compounds in the gas phase at from 200 DEG to 450 DEG C. in the presence of an oxide or phosphate of a metal of group 3 or 4 of the periodic table and/or in the presence of silicon dioxide. The 2-imidazolines obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.