C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
6/221, 400/7083,
C07D 211/46 (2006.01) C07D 211/58 (2006.01) C07D 401/12 (2006.01) C08K 5/3435 (2006.01)
Patent
CA 1314550
Piperidine compounds Abstract of the Disclosure The novel compounds of the formula (I) (I) Image in which n is 1 or 2, R1 is hydrogen, O , NO, cyanonethyl, C1-C8- alkyl, C3-C6alkenyl or C3-C6alkynyl subject to the proviso that the carbon atom attached to the nitrogen atom is a primary carbon atom, benzyl, C1-C7acyl or OH-monosubstituted C2-C4alkyl, R2 is hydrogen, C1-C4alkyl or phenyl, R3 is a group of the formula (II) Image (II) with R6 being as defined for R1, R4 is -COOR3 or -CN and, if n is 1, R5 is hydrogen, C1-C18alkyl, C2-C4alkyl substituted by C1-C12alkoxy or di(C1-C6alkyl)amino, or C5-C12cycloalkyl unsubstituted or substituted by 1, 2 or 3 C1-C4alkyl radicals, benzyl, benzyl substituted by 1, 2 or 3 C1-C4alkyl radicals, or a group of the formula (II), and, if n is 1 and R4 is -CN, R3 is additionally a group of the formula Image with R1, R2 and R5 being as defined above and R7 being as defined for R2, and, if n is 2, R5 is C2-C12alkylene, C6-C15cycloalkylene, phenylene, xylylene or C4-C12alkylene which is interrupted in the chain by one or two oxygen atoms or one or two groups Image with R2, R4, and R6 being as defined above, are useful for sta- bilizing organic material against oxidative, thermal and light- induced degradation.
559634
Borzatta Valerio
Cantatore Giuseppe
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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