Polymer compositions containing as antioxidants substituted hexa

Details Polymer compositions containing as antioxidants substituted hexa Polymer compositions containing as antioxidants substituted hexa

1978-06-16

1980-01-22

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 534

Patent

active

041850050

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-subsituted 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), Bonvicini

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