Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1974-04-01
1976-05-04
Winters, Sherman D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260 458N, 26029362, 26029372, 26029374, 26029375, 26029381, 26029382, 26029383, 26029384, 2602949, 260295R, 260297R, C07D21122
Patent
active
039547795
ABSTRACT:
A compound having the formula:- ##SPC1##
And salts thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each is hydrogen, an alkyl residue having from 1 to 9 carbon atoms, a cycloalkyl residue having from 5 to 14 carbon atoms or a cycloalkyl-alkyl residue having from 7 to 14 carbon atoms, Y is hydrogen, 0.degree., an alkyl residue having from 1 to 4 carbon atoms, or an aralkyl residue having from 7 to 12 carbon atoms and Z is hydrogen, an unsubstituted or substituted alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 2 to 20 carbon atoms, a cycloalkyl residue having from 5 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms, an aryl residue having from 6 to 12 carbon atoms, or the group having the formula: wherein Z.sub.1 has the same significance as Z as hereinbefore defined, or Z.sub.1 is a group --NR.sub.5 R.sub.6 wherein R.sub.5 is hydrogen or an alkyl residue having from 1 to 4 carbon atoms and R.sub.6 is hydrogen, an alkyl group having from 1 to 20 carbon atoms, a cycloalkyl group having from 5 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or an aryl residue having from 6 to 12 carbon atoms having light stabilising activity.
REFERENCES:
patent: 3513170 (1970-05-01), Murayama et al.
patent: 3828052 (1974-08-01), Holt et al.
Randell Donald Richard
Smith Malcolm John
Ciba-Geigy Corporation
Shust Nestor W.
Winters Sherman D.
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