N,N'-disubstituted-p-phenylenediamines

Details N,N'-disubstituted-p-phenylenediamines N,N'-disubstituted-p-phenylenediamines

1977-06-06

1978-11-07

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260804, 260809, 260571, 260576, C08K 536, C07C 8762

Patent

active

041245652

ABSTRACT:
N,N'-disubstituted-p-phenylenediamines, wherein one of the substituents is a R-thiomethylphenyl moiety, are produced by a reaction of thiols, formaldehyde, and an N-phenyl-p-phenylenediamine in the presence of an acid. These compounds are antioxidants and antiozonants in rubber compounds.

REFERENCES:
patent: 3000852 (1961-09-01), Merz
patent: 3035014 (1962-05-01), Popoff et al.
patent: 3217038 (1965-11-01), Guarnaccio et al.
patent: 3423327 (1969-01-01), Tracy
Polymer Stabilization, by Hawkins, Wiley Interscience Pub., NYC, 1972, pp. 55 to 63.
Atmospheric Oxidation and Antioxidants, by Scott, Elsevier Press, NYC, 1965, pp. 494 to 511.
J. Organic Chemistry, vol. 28, (Oct. 1963) pp. 2763 to 2765.
J. Organic Chemistry, vol. 30, (Jan. 1965) pp. 28 to 33.

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