Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-05-08
1976-04-06
Hoke, V. P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260471C, C08J 320
Patent
active
039488543
ABSTRACT:
Compounds of the formula ##SPC1##
In which R.sub.1 denotes hydrogen, alkyl with 1-8 carbon atoms, alkenyl with 3 or 4 carbon atoms, cycloalkyl with 5-8 carbon atoms, aralkyl with 7-9 carbon atoms, phenyl, chlorine, bromine, hydroxyl, alkoxy with 1-18 carbon atoms or acyloxy with 2-18 carbon atoms, R.sub.2 denotes hydrogen, alkyl with 1-5 carbon atoms, alkenyl with 3 or 4 carbon atoms, cyclohexyl, aralkyl with 7-9 carbon atoms, chlorine or bromine, n denotes 1 and A denotes alkyl with 1-21 carbon atoms, alkenyl with 3-6 carbon atoms, alkynyl with 3-6 carbon atoms, oxaalkyl with 2-21 carbon atoms, thiaalkyl with 2-21 carbon atoms, the hetero-atoms in the oxaalkyl or thiaalkyl radical being separated from one another and/or from the oxygen atom to which these radicals are bonded, by at least 2 carbon atoms, cyclohexyl or benzyl, or n denotes 2 and A denotes alkylene with 2-10 carbon atoms, alkenylene with 4 carbon atoms, alkynylene with 4 carbon atoms, oxaalkylene with 4-10 carbon atoms or thiaalkylene with 4-10 carbon atoms, the hetero-atoms in the oxaalkylene or thiaalkylene radical being separated from one another and/or from the oxygen atom to which these radicals are bonded, by at least 2 carbon atoms, can be used for stabilising organic material, especially in the presence of metals.
REFERENCES:
patent: 3260740 (1966-07-01), Crowther et al.
patent: 3509093 (1970-04-01), Lehmann et al.
Journal of Heterocyclic Chemistry - 2 (1); 37 to 40, 1965
Rosenberger Siegfried
Schwarzenbach Kurt
Ciba-Geigy Corporation
Hoke V. P.
Vanecek Charles W.
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