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Title: Process for the manufacture of 2-arylamino-2-imidazoline derivatives and their salts

Abstract: A process for the preparation of the known and valuable 2-aryl-amino-2-imidazoline derivatives which comprises condensing an appropriately substituted aniline with a 1-acyl-imidazolidin-2-one to produce an intermediate compound which on neutralisation in an aqueous medium is converted into a N-acyl derivative of the 2-aryl-amino-2-imidazoline, and splitting the intermediate compound or the said N-acyl derivative to give the corresponding free arylamino-2-imidazoline derivative or a salt thereof.


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Inventors: Franzmair, Rudolf (Linz-Ebelsberg, OE)

Application Number: 456200
Filing Date: 1974-03-29
Publication_date: 1976-01-06
Assignee: Boehringer Ingelheim GmbH (DT)
Primary Class(es): 548/333.1
Other Classes:
US Patent Ref:
2899426Aug, 1959Bloom260/309.
3236857Feb, 1966Zeile et al.260/309.
3462433Aug, 1969Stahle et al.260/309.
3595961Jul, 1971Stahle et al.260/309.
3752810Aug, 1973Stahle et al.260/309.

Other Refs:
Primary Examiner: Love, Ethel G.
Assistant Examiner:
Attorney: Wenderoth, Lind & Ponack