Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-06-16
1980-01-08
Hoke, Veronica P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260801, C08K 517
Patent
active
041827058
ABSTRACT:
This invention relates to diamines prepared by condensing cyclohexanone, or derivatives thereof, with ammonia to yield tetrahydropyrimidines, which can be reduced to hexahydropyrimidines, whose pyrimidine ring can be broken to yield diamines having one primary amino group, which primary group can be reacted with a carbonyl to yield Schiff base imines, which Schiff base imines can be reduced to N-substituted amino groups. The two amino groups of the reduced Schiff base can be bridged by reaction with an aldehyde to form N,N'-disubstituted hexahydropyrimidines.
This invention also relates to the use of these products as antioxidants.
REFERENCES:
patent: 3248245 (1966-04-01), Hodge et al.
patent: 3277045 (1966-10-01), Bonivinci
patent: 4009209 (1977-02-01), Thompson
Glass Hyman F.
Hoke Veronica P.
Petrolite Corporation
Ring Sidney B.
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