Process for producing 1,2-substituted imidazoline compounds

Details Process for producing 1,2-substituted imidazoline compounds Process for producing 1,2-substituted imidazoline compounds

1986-06-06

1987-11-24

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23304

Patent

active

047090456

ABSTRACT:
A 1,2-substituted imidazoline compound having the formula (I): ##STR1## in which R2 is an alkyl or alkenyl group having 8 to 22 carbon atoms and n is 2 or 3, is produced by (1) feeding in a reactor a dialkylenetriamine (II) with a higher fatty acid of R2COOH or an ester thereof (III) at a molar ratio of the compound (III) to the compound (II) in the range of 1.5:1 to 1.8:1, (2) effecting the reaction at an internal temperature of 100.degree. to 250.degree. C. at a reduced pressure, (3) adding to the reaction mixture so that the above defined molar ratio in total may reach at least 2.0:1 and (4) continuing the reaction at an internal temperature of 100.degree. to 250.degree. C. at a reduced pressure. The reaction proceeds with a high yield of the product (I), without by-production to primary and second amines.

REFERENCES:
patent: 3555041 (1971-01-01), Katz

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