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Azo compound having one or two aliphatic or cycloaliphatic groups containing a total of 8 to 40 carbon atoms therein

Assignee: Imperial Chemical Industries Ltd
•
Filing: 1986-10-16
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Granted: 1989-02-14
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Expires: 2006-10-16
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Abstract

Abstract (i) A compound of the formula: <IMAGE> I wherein R is H, a metal or a group containing a tetravalent N atom; X is S, O, <IMAGE> R1 is NO2, CN or COOY; Y is H, C1-4-alkyl, a metal or a group containing a tetravalent N atom; R2 and R3 are each independently H or a non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms; R4 and R5 are each independently H or a non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms; and R6 and R7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms; or R4 and R6 together comprise ring fused to Ring A and R5 and R7 are as hereinbefore defined; or R5 and R7 together comprise ring fused to Ring A and R4 and R6 are as hereinbefore defined; or R2 and R4 together with the N atom to which R2 is attached form a ring fused to Ring A and R3 and R5 are as hereinbefore defined; or R3 and R5 together with the N atom to which R3 is attached form a ring fused to Ring A and R2 and R4 are as hereinbefore defined; provided there are, in total, from 8 to 40 carbon atoms in one or two of the groups independently represented by R2, R3, R4 and R5; (ii) an optical element comprising a compound of Formula I having non-linear optical (NLO) properties for use in the generation of NLO signals, (iii) a method of preparation of such an optical element comprising a plurality of monomolecular layers of the compound of Formula I on the surface of a transparent or reflecting substrate by a Langmuir-Blodgett technique; and (iv) an optical device incorporating such an optical element.

Inventors

  • 👤 Simon Allen
  • 👤 Paul F. Gordon
  • 👤 Richard A. Hann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 16:47
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611; G02F1/3612; C; C09; C09B; C09B29/00; C09B29/0003; C09B29/0007; G02F1/3613; G02F1/3614; G02F1/37; G02F1/377; Y; Y10; Y10S; Y10S430/00; Y10S430/141; Y10S430/146; Y10S534/00; Y10S534/02

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 578 words
A compound of the formula: ##STR5## wherein R is selected from H, cadmium, calcium barium, lead, manganese, zinc, magnesium and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; X is S, O, ##STR6## R 1 is NO 2 , CN, or COOY: Y is selected from H 1 , C 1-4 -alkyl, cadmium, calcium, barium, lead, manganese, zinc, magnesium, and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; R 2 and R 3 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms; R 4 and R 5 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms, each of R 4 and R 5 being attached directly to Ring A or joined thereto by a linking group selected from oxygen, sulphur, nitrogen, --CO--, --SO 2 , --CO.O-- and SO 2 .O; and R 6 and R 7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms selected from C 1-4 -alkyl, C 1-4 -alkoxy, NH 2 , and mono- and di-C 1-4 -alkylamino; or R 4 and R 6 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 5 and R 7 are as hereinbefore defined; or R 5 and R 7 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or R 2 and R 4 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 3 and R 5 are as hereinbefore defined; R 3 and R 5 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or provided there are, in total, from 8 to 40 carbon atoms in one or two of the groups independently represented by R 2 , R 3 , R 4 and R 5 .
Claim 2
Dependent Claim 578 words
A compound of the formula: ##STR5## wherein R is selected from H, cadmium, calcium barium, lead, manganese, zinc, magnesium and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; X is S, O, ##STR6## R 1 is NO 2 , CN, or COOY: Y is selected from H 1 , C 1-4 -alkyl, cadmium, calcium, barium, lead, manganese, zinc, magnesium, and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; R 2 and R 3 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms; R 4 and R 5 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms, each of R 4 and R 5 being attached directly to Ring A or joined thereto by a linking group selected from oxygen, sulphur, nitrogen, --CO--, --SO 2 , --CO.O-- and SO 2 .O; and R 6 and R 7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms selected from C 1-4 -alkyl, C 1-4 -alkoxy, NH 2 , and mono- and di-C 1-4 -alkylamino; or R 4 and R 6 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 5 and R 7 are as hereinbefore defined; or R 5 and R 7 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or R 2 and R 4 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 3 and R 5 are as hereinbefore defined; R 3 and R 5 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or provided there are, in total, from 8 to 40 carbon atoms in one or two of the groups independently represented by R 2 , R 3 , R 4 and R 5 .
Claim 3
Dependent Claim 592 words
A compound of the formula: ##STR7## wherein R is selected from H, cadmium, calcium barium, lead, manganese, zinc, magnesium and strontium or a group containing a tetravelent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -allkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; X is S, O, ##STR8## R 1 is NO 2 , CN, or COOY: Y is selected from H 1 , C 1-4 -alkyl, cadmium calcium, barium, lead, manganese, zinc, magnesium, and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkylphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; R 2 and R 3 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloakyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms; R 4 and R 5 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms, each of R 4 and R 5 being attached directly to Ring A or joined thereto by a linking group selected from oxygen, sulphur, nitrogen, --CO--, --SO 2 , --CO.O-- and --SO 2 .O; and R 6 and R 7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms selected from C 1-4 -alkyl, C 1-4 -alkoxy, NH 2 , and mono- and di-C 1-4 alkylamino; or R 4 and R 6 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 5 and R 7 are as hereinbefore defined; or R 5 and R 7 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or R 2 and R 4 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 3 and R 5 are as hereinbefore defined; or R 3 and R 5 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or provided that there are in total from 8 to 40 carbon atoms in one or both of the groups represented by R 2 and R 3 or that one of the groups represented by R 4 and R 5 contains from 8 to 20 carbon atoms.
Claim 4
Dependent Claim 592 words
A compound of the formula: ##STR7## wherein R is selected from H, cadmium, calcium barium, lead, manganese, zinc, magnesium and strontium or a group containing a tetravelent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -allkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; X is S, O, ##STR8## R 1 is NO 2 , CN, or COOY: Y is selected from H 1 , C 1-4 -alkyl, cadmium calcium, barium, lead, manganese, zinc, magnesium, and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkylphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; R 2 and R 3 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloakyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms; R 4 and R 5 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms, each of R 4 and R 5 being attached directly to Ring A or joined thereto by a linking group selected from oxygen, sulphur, nitrogen, --CO--, --SO 2 , --CO.O-- and --SO 2 .O; and R 6 and R 7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms selected from C 1-4 -alkyl, C 1-4 -alkoxy, NH 2 , and mono- and di-C 1-4 alkylamino; or R 4 and R 6 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 5 and R 7 are as hereinbefore defined; or R 5 and R 7 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or R 2 and R 4 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 3 and R 5 are as hereinbefore defined; or R 3 and R 5 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or provided that there are in total from 8 to 40 carbon atoms in one or both of the groups represented by R 2 and R 3 or that one of the groups represented by R 4 and R 5 contains from 8 to 20 carbon atoms.
Claim 5
Dependent Claim 571 words
A compound of the formula ##STR9## wherein R is selected from H, cadmium, calcium barium, lead, manganese, zinc, magnesium and strontium or a group containing a tetravelent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -allkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; X is S, O, ##STR10## R 1 is NO 2 , CN, or COOY: Y is selected from H 1 , C 1-4 -alkyl, cadmium, barium, lead, manganese, zinc, magnesium, and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkylphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; R 2 and R 3 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms; R 4 and R 5 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms, each of R 4 and R 5 being attached directly to Ring A or joined thereto by a linking group selected from oxygen, sulphur, nitrogen, --CO--, --SO 2 , --CO.O-- and --SO 2 .O; and R 6 and R 7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms selected from C 1-4 -alkyl, C 1-4 -alkoxy, NH 2 , and mono- and di-C 1-4 alkylamino; or R 4 and R 6 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 5 and R 7 are as hereinbefore defined; or R 5 and R 7 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or R 2 and R 4 together with the N atom and the carbon atoms of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 3 and R 5 are as hereinbefore defined; or R 3 and R 5 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; provided that there are in total from 8 to 40 carbon atoms in one or both of the groups represented by R 2 and R 3 .
Claim 6
Dependent Claim 571 words
A compound of the formula ##STR9## wherein R is selected from H, cadmium, calcium barium, lead, manganese, zinc, magnesium and strontium or a group containing a tetravelent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkyphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -allkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; X is S, O, ##STR10## R 1 is NO 2 , CN, or COOY: Y is selected from H 1 , C 1-4 -alkyl, cadmium, barium, lead, manganese, zinc, magnesium, and strontium or a group containing a tetravalent nitrogen atom selected from ammonium, bis(ammonium), guanidinium, biguanidinium, amidinium and a mono- di- or tri-substituted or quaternary ammonium group in which the substituents are selected from C 1-20 -alkyl, C 1-4 -alkoxy-C 1-20 -alkyl, halo-C 1-20 -alkyl, hydroxy-C 1-20 -alkyl, phenyl, C 1-4 -alkylphenyl, C 1-4 -alkoxyphenyl, halophenyl, hydroxyphenyl, benzyl, C 1-4 -alkylbenzyl, C 1-4 -alkoxybenzyl, halobenzyl, hydroxybenzyl, cyclohexyl and C 1-4 -alkyl-cyclohexyl; R 2 and R 3 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms; R 4 and R 5 are each independently H or non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms selected from alkyl, alkenyl, cycloalkyl, a mixture thereof and alkyl, alkenyl, cycloalkyl or a mixture thereof interrupted by not more than one oxygen or sulphur for every twelve chain carbon atoms, each of R 4 and R 5 being attached directly to Ring A or joined thereto by a linking group selected from oxygen, sulphur, nitrogen, --CO--, --SO 2 , --CO.O-- and --SO 2 .O; and R 6 and R 7 are each independently H or a non-hydrophilic group containing up to 4 carbon atoms selected from C 1-4 -alkyl, C 1-4 -alkoxy, NH 2 , and mono- and di-C 1-4 alkylamino; or R 4 and R 6 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 5 and R 7 are as hereinbefore defined; or R 5 and R 7 together with the carbon atoms of Ring A to which they are attached form a benzene, pyrrole, furan, thiazole, isothiazole, thiophene or pyridine ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; or R 2 and R 4 together with the N atom and the carbon atoms of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 3 and R 5 are as hereinbefore defined; or R 3 and R 5 together with the N atom and the carbon atom of Ring A to which they are attached form a 2-pyrroline, tetrahydropyridine, 4-oxazoline or 4-thiazoline ring fused to Ring A and R 4 and R 6 are as hereinbefore defined; provided that there are in total from 8 to 40 carbon atoms in one or both of the groups represented by R 2 and R 3 .
Claim 7
Dependent Claim 20 words
A compound according to claim 1, 2 or 3 wherein R 2 is C 8-20 -alkyl or C 8-20 -alkenyl.
Claim 8
Dependent Claim 41 words
A compound according to claim 4 wherein R 3 , R 4 and R 5 are selected from H, C 1-4 -alkyl, C 1-4 -alkoxy and NT 2 wherein each T is independently selected from H, C 1-4 -alkyl and phenyl.
Claim 9
Dependent Claim 34 words
A compound according to claim 1 wherein R 4 is selected from C 8-20 -alkyl, C 8-20 -alkenyl, C 8-20 -alkoxy, C 8-20 -alkenoxy, C 8-20 -alkylthio, C 8-20 -alkylamino and C 8-20 -alkoxycarbonyl.
Claim 10
Dependent Claim 41 words
A compound according to claim 6 wherein R 2 , R 3 and R 5 are selected from H, C 1-4 -alkyl, C 1-4 -alkoxy and NT 2 wherein each T is independently selected from H, C 1-4 -alkyl and phenyl.
Claim 11
Dependent Claim 41 words
A compound according to claim 1, 2, or 3 wherein R 2 and R 3 are each independently C 1-19 -alkyl or C 1-19 -alkenyl provided the sum of the carbon atoms in the two groups is from 8 to 20.
Claim 12
Dependent Claim 42 words
A compound according to claim 1, 2, or 3 wherein R 6 and R 7 are independently selected from H, C 1-4 -alkyl, C 1-4 -alkoxy and NT 2 wherein each T is independently selected from H, C 1-4 -alkyl and phenyl.
Claim 13
Dependent Claim 13 words
A compound according to claim 1, 2 or 3 wherein: X is ##STR11##
Claim 14
Dependent Claim 61 words
A compound according to claim 1, 2 or 3 wherein: R is selected from H, Cd, Ca, Ba, Pb, NH 4 and N(CH 3 ) 4 ; R 1 is NO 2 or CN; R 2 is C 8-20 -alkyl; R 3 is H or C 1-4 -alkyl; R 4 to R 7 are each H; and X is ##STR12## .
Claim 15
Dependent Claim 4 words
The compound 4-(4-[N-n-dodecyl-N-methylamino]phenylazo)-3-nitrobenzoic acid.
Claim 16
Dependent Claim 4 words
The compound 4-(4-[N-n-dodecyl-N-methylamino]phenylazo)-3-nitrobenzoic acid.

References Cited (Backward Citations)

US3351580A Cited
GB1425029A Cited
JPS5996166A Cited
US4619893A Cited
JPS61152647A Cited

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