Antioxidants and process of preparing said antioxidants

Details Antioxidants and process of preparing said antioxidants Antioxidants and process of preparing said antioxidants

1971-12-09

1978-06-27

Hines, Robert V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252401, 260 459R, 260455A, 260801, 568706, C07C 8728

Patent

active

040975274

ABSTRACT:
Phenolic antioxidants such as 1,1-dimethyl-2-(3,5-di tert.butyl-4-hydroxyphenyl) ethyl amine and a method of preparing said antioxidants involving the reaction between a 3,5-di tert.alkyl-4-hydroxybenzyl halide; N,N-dialkyl amine or dithiocarbamate such as 3,5-di tert.butyl-4-hydroxybenzyl chloride; 2,6-di tert.butyl-4-dimethylaminomethylphenol or 3,5-di tert.butyl-4-hydroxybenzyl N,N-dimethyldithiocarbamate and a nitroalkane such as 2-nitropropane to produce a nitro compound such as 1,1-dimethyl-2-(3,5-di tert.butyl-4-hydroxyphenyl)-1-nitroethane which can be catalytically reduced to form the aminoalkyl phenol.

REFERENCES:
patent: 3149159 (1964-09-01), Kaiser et al.
patent: 3297726 (1967-01-01), Zecher et al.
patent: 3496211 (1970-02-01), Dexter et al.
Belostotskaya et al., "Chemical Abstracts", vol. 66, p. 6123, section 65237q (1967).
Houben-Weyl, "Methoden der Organischen Chemie", vol. 10, No. 1, pp. 159-160 (1971).

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