Preparation of 2-imidazolines

Details Preparation of 2-imidazolines Preparation of 2-imidazolines

1981-03-09

1982-07-20

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548355, C07D23106

Patent

active

043407455

ABSTRACT:
2-Imidazolines are prepared by reacting N,N'-diformyl-1,2-diamines in the gas phase at 200.degree.-350.degree. C., in the presence of certain amounts of an inert gas, over zinc oxide of a particular structure or over a mixture of this zinc oxide and aluminum oxide, as the catalyst.
The 2-imidazolines obtainable by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.

REFERENCES:
patent: 3388132 (1968-06-01), Kroeper et al.
patent: 3629278 (1971-12-01), Bachman
Journal of the American Chemical Society 95 (1973) 4,447-4,448.
Ullmanns Encyklopadie der technischen Chemie, vol. 13, pp. 331-338.

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