Polyalkylated 4-aminopiperidine derivatives

Claim 2

A compound of formula (I): ##STR383## wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, a cycloalkyl group having from 5 to 7 carbon atoms, an unsubstituted phenyl group, a phenyl group having one or more substituents selected from C 1 -C 4 alkyl and C 1 -C 4 alkoxy groups, a naphthyl group, an aralkyl group having 7 or 8 carbon atoms, an aliphatic, aromatic, araliphatic or alicyclic acyl group having up to 18 carbon atoms wherein the aryl moiety is unsubstituted or has one or more substituents selected from C 1 -C 4 alkyl and hydroxy groups, an alkylsulphonyl group having from 1 to 4 carbon atoms, a phenylsulphonyl group which is unsubstituted or has one or more C 1 -C 12 alkyl substituents, a group of formula --CONHR 3 wherein R 3 represents an alkyl group having from 1 to 18 carbon atoms, an unsubstituted phenyl group, a substituted phenyl group having one or more substituents selected from methyl groups, chlorine atoms and bromine atoms, a naphthyl group or a cycloalkyl group having from 5 to 7 carbon atoms, or a group of formula --CH 2 CH 2 OZ; when R 2 represents a hydrogen atom, Z of X and Y as defined herein below represents a hydrogen atom and when R 2 represents a group other than a hydrogen atom, Z represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an allyl group, a benzyl group, an aliphatic, aromatic, araliphatic or alicyclic acyl group having up to 18 carbon atoms wherein the aryl moiety is unsubstituted or has one or more substituents selected from C 1 -C 4 alkyl and hydroxy groups, or a group of formula --CONHR 9 wherein R 9 represents an alkyl group having from 1 to 18 carbon atoms, an unsubstituted phenyl group, a phenyl group having one or more substituents selected from methyl groups, chlorine atoms and bromine atoms, a naphthyl or a cycloalkyl group having from 5 to 7 carbon atoms; when R 2 represents a hydrogen atom, Y represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having 3 or 4 carbon atoms or a benzyl group, and, when R 2 represents a group other than a hydrogen atom, Y represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having 3 or 4 carbon atoms, a benzyl group, a 2,3-epoxypropyl group, an aliphatic acyl group having up to 18 carbon atoms or one of the groups of formulae ##STR384## wherein R 6 represents an alkyl group having from 1 to 4 carbon atoms; R 7 represents a hydrogen atom, a methyl group or a phenyl group; R 8 represents an alkyl group having from 1 to 18 carbon atoms; and Z is as defined above; b represents 2 or 3; and when b=2, X represents one of the groups of formulae ##STR385## m represents an integer of from 1 to 10; n represents an integer of from 1 to 10; R 4 represents a hydrogen atom or a methyl group; W represents one of the groups of formulae ##STR386## wherein p represents 0, 1 or 2; R 5 represents a halogen atom; q represents an integer of from 1 to 10; and Z is as defined above; when b=3, X represents one of the groups of formulae ##STR387## wherein Z is as defined above, and an acid addition salt thereof.

Claim 3

A compound as claimed in claim 1, wherein R 1 represents a hydrogen atom.

Claim 4

A compound as claimed in claim 1, wherein R 2 represents a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, an alkanoyl group having from 2 to 12 carbon atoms, a benzoyl group or a group of formula --CH 2 CH 2 OZ' wherein Z' represents a hydrogen atom, an acetyl group or a benzoyl group.

Claim 5

A compound as claimed in claim 1, wherein X represents a group of formula ##STR388## wherein W' represents one of the groups of formulae ##STR389## --CO[CH 2 ] q CO-- and --CH 2 CH 2 -- wherein q is an integer of from 1 to 10; Z' represents a hydrogen atom, an acetyl group or a benzoyl group, and n' is 0 or 1.

Claim 6

A compound as claimed in claim 4, wherein W' represents one of the groups of formulae ##STR390## n' represents 1.

Claim 7

A compound as claimed in claim 1, wherein Y represents a hydrogen atom, a methyl group, an allyl group or an acetyl group.

Claim 8

A compound as claimed in claim 1, wherein Z represents a hydrogen atom, an acetyl group or a benzoyl group.

Claim 9

A compound of formula (II): ##STR391## wherein R 12 represents a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms or a 2-hydroxyethyl group; X' represents a group of formula ##STR392## wherein W' represents one of the groups of formulae ##STR393## and --CH 2 CH 2 --, and n' represents 0 or 1; and Y' represents a hydrogen atom or a methyl group.

Claim 10

A compound of formula (II): ##STR391## wherein R 12 represents a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms or a 2-hydroxyethyl group; X' represents a group of formula ##STR392## wherein W' represents one of the groups of formulae ##STR393## and --CH 2 CH 2 --, and n' represents 0 or 1; and Y' represents a hydrogen atom or a methyl group.

Claim 11

A polymeric composition stabilized against photo- and thermal deterioration comprising a synthetic polymer and a stabilizing amount of stabilizer selected from the group consisting of compounds of formula (I): ##STR394## wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, a cycloalkyl group having from 5 to 7 carbon atoms, an unsubstituted phenyl group, a phenyl group having one or more substituents selected from C 1 -C 4 alkyl and C 1 -C 4 alkoxy groups, a naphthyl group, an aralkyl group having 7 or 8 carbon atoms, an aliphatic, aromatic, araliphatic or alicyclic acyl group having up to 18 carbon atoms wherein the aryl moiety is unsubstituted or has one or more substituents selected from C 1 -C 4 alkyl and hydroxy groups, an alkylsulphonyl group having from 1 to 4 carbon atoms, a phenylsulphonyl group which is unsubstituted or has one or more C 1 -C 12 alkyl substituents, a group of formula --CONHR 3 wherein R 3 represents an alkyl group having from 1 to 18 carbon atoms, an unsubstituted phenyl group, a substituted phenyl group having one or more substituents selected from methyl groups, chlorine atoms and bromine atoms, a naphthyl group or a cycloalkyl group having from 5 to 7 carbon atoms, or a group of formula --CH 2 CH 2 OZ; when R 2 represents a hydrogen atom, Z of X and Y as defined herein below represents a hydrogen atom and when R 2 represents a group other than a hydrogen atom, Z represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an allyl group, a benzyl group, an aliphatic, aromatic, araliphatic or alicyclic acyl group having up to 18 carbon atoms wherein the aryl moiety is unsubstituted or has one or more substituents selected from C 1 -C 4 alkyl and hydroxy groups, or a group of formula --CONHR 9 wherein R 9 represents an alkyl group having from 1 to 18 carbon atoms, an unsubstituted phenyl group, a phenyl group having one or more substituents selected from methyl groups, chlorine atoms and bromine atoms, a naphthyl or a cycloalkyl group having from 5 to 7 carbon atoms; when R 2 represents a hydrogen atom, Y represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having 3 or 4 carbon atoms or a benzyl group, and, when R 2 represents a group other than a hydrogen atom, Y represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having 3 or 4 carbon atoms, a benzyl group, a 2,3-epoxypropyl group, an aliphatic acyl group having up to 18 carbon atoms or one of the groups of formulae ##STR395## wherein R 6 represents an alkyl group having from 1 to 4 carbon atoms; R 7 represents a hydrogen atom, a methyl group or a phenyl group; R 8 represents an alkyl group having from 1 to 18 carbon atoms; and Z is as defined above; b represents 2 or 3; and when b=2, X represents one of the groups of formulae ##STR396## m represents an integer of from 1 to 10; n represents an integer of from 1 to 10; R 4 represents a hydrogen atom or a methyl group; W represents one of the groups of formulae ##STR397## wherein p represents 0, 1 or 2; R 5 represents a halogen atom; q represents an integer of from 1 to 10; and Z is as defined above; when b=3; X represents one of the groups of formulae ##STR398## wherein Z is as defined above, and acid addition salts thereof.

Claim 12

A polymeric composition stabilized against photo- and thermal deterioration comprising a synthetic polymer and a stabilizing amount of stabilizer selected from the group consisting of compounds of formula (I): ##STR394## wherein R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, a cycloalkyl group having from 5 to 7 carbon atoms, an unsubstituted phenyl group, a phenyl group having one or more substituents selected from C 1 -C 4 alkyl and C 1 -C 4 alkoxy groups, a naphthyl group, an aralkyl group having 7 or 8 carbon atoms, an aliphatic, aromatic, araliphatic or alicyclic acyl group having up to 18 carbon atoms wherein the aryl moiety is unsubstituted or has one or more substituents selected from C 1 -C 4 alkyl and hydroxy groups, an alkylsulphonyl group having from 1 to 4 carbon atoms, a phenylsulphonyl group which is unsubstituted or has one or more C 1 -C 12 alkyl substituents, a group of formula --CONHR 3 wherein R 3 represents an alkyl group having from 1 to 18 carbon atoms, an unsubstituted phenyl group, a substituted phenyl group having one or more substituents selected from methyl groups, chlorine atoms and bromine atoms, a naphthyl group or a cycloalkyl group having from 5 to 7 carbon atoms, or a group of formula --CH 2 CH 2 OZ; when R 2 represents a hydrogen atom, Z of X and Y as defined herein below represents a hydrogen atom and when R 2 represents a group other than a hydrogen atom, Z represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an allyl group, a benzyl group, an aliphatic, aromatic, araliphatic or alicyclic acyl group having up to 18 carbon atoms wherein the aryl moiety is unsubstituted or has one or more substituents selected from C 1 -C 4 alkyl and hydroxy groups, or a group of formula --CONHR 9 wherein R 9 represents an alkyl group having from 1 to 18 carbon atoms, an unsubstituted phenyl group, a phenyl group having one or more substituents selected from methyl groups, chlorine atoms and bromine atoms, a naphthyl or a cycloalkyl group having from 5 to 7 carbon atoms; when R 2 represents a hydrogen atom, Y represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having 3 or 4 carbon atoms or a benzyl group, and, when R 2 represents a group other than a hydrogen atom, Y represents a hydrogen atom, an alkyl group having from 1 to 18 carbon atoms, an alkenyl group having 3 or 4 carbon atoms, a benzyl group, a 2,3-epoxypropyl group, an aliphatic acyl group having up to 18 carbon atoms or one of the groups of formulae ##STR395## wherein R 6 represents an alkyl group having from 1 to 4 carbon atoms; R 7 represents a hydrogen atom, a methyl group or a phenyl group; R 8 represents an alkyl group having from 1 to 18 carbon atoms; and Z is as defined above; b represents 2 or 3; and when b=2, X represents one of the groups of formulae ##STR396## m represents an integer of from 1 to 10; n represents an integer of from 1 to 10; R 4 represents a hydrogen atom or a methyl group; W represents one of the groups of formulae ##STR397## wherein p represents 0, 1 or 2; R 5 represents a halogen atom; q represents an integer of from 1 to 10; and Z is as defined above; when b=3; X represents one of the groups of formulae ##STR398## wherein Z is as defined above, and acid addition salts thereof.

Claim 13

A composition as claimed in claim 9, wherein R 1 represents a hydrogen atom.

Claim 14

A composition as claimed in claim 9, wherein R 2 represents a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, a cyclohexyl group, an alkanoyl group having from 2 to 12 carbon atoms, a benzoyl group or a group of formula --CH 2 CH 2 OZ' wherein Z' represents a hydrogen atom, an acetyl group or a benzoyl group.

Claim 15

A composition as claimed in claim 9, wherein X represents a group of formula ##STR399## wherein W' represents one of the groups of formulae ##STR400## --CO[CH 2 ] q CO-- and --CH 2 CH 2 -- wherein q is an integer of from 1 to 10; Z' represents a hydrogen atom, an acetyl group or a benzoyl group, and n' is 0 or 1.

Claim 16

A composition as claimed in claim 12, wherein W' represents one of the groups of formulae ##STR401## n' represents 1.

Claim 17

A composition as claimed in claim 9, wherein Y represents a hydrogen atom, a methyl group, an allyl group or an acetyl group.

Claim 18

A composition as claimed in claim 9, wherein Z represents a hydrogen atom, an acetyl group or a benzoyl group.

Claim 19

A composition as claimed in claim 9, wherein said stabilizer is selected from compounds of formula (II): ##STR402## wherein R 12 represents a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms or a 2-hydroxyethyl group; X' represents a group of formula ##STR403## wherein W' represents one of the groups of formulae ##STR404## and --CH 2 CH 2 --, and n' represents 0 or 1; and Y' represents a hydrogen atom or a methyl group.