WO1994004539A1 - Chromogenic reagents - Google Patents
Chromogenic reagents Download PDFInfo
- Publication number
- WO1994004539A1 WO1994004539A1 PCT/GB1993/001713 GB9301713W WO9404539A1 WO 1994004539 A1 WO1994004539 A1 WO 1994004539A1 GB 9301713 W GB9301713 W GB 9301713W WO 9404539 A1 WO9404539 A1 WO 9404539A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compound
- group
- chr
- hydrogen
- substituted
- Prior art date
Links
- 0 CC*CCN(CC*CCCNCC1=CC(*)*2)CC2=C1N Chemical compound CC*CCN(CC*CCCNCC1=CC(*)*2)CC2=C1N 0.000 description 1
- YCIMNLLNPGFGHC-UHFFFAOYSA-N Oc1ccccc1O Chemical compound Oc1ccccc1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D498/08—Bridged systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
- C09B29/26—Amino phenols
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
Definitions
- the present invention relates to chromogenic reagents and more particularly to compounds which function as selective cation-sensitive dyes (referred to hereafter as chromoionophores) .
- chromoionophores compounds which function as selective cation-sensitive dyes
- These chro oionophores are based upon chromophores which are linked to cation-selective ionophores.
- Chromoionophores based upon chromophores which are linked to cation-selective ionophores are described in the publications listed below:-
- R is 3-phenyl-5-isothiazolylazo, 5-isothiazolylazo, 5-thiazolylazo, 2,4,6-( ⁇ 2N)3- 4-0x0-2,5-cyclohexen-l-ylidenamino, or (p- Me 2 NC 6 H 4 ) 2 COH; m and n are 0 or 1; and
- X is N or COH.
- the present invention aims to overcome or at least alleviate the above-mentioned disadvantages.
- X is a chromophore
- Y and Z are -CH 2 (CHR-0-CHR) n CH 2 - in which n is an integer from 1 to 10 (which may be different for Y and Z) , and each R independently is hydrogen or a substituent for hydrogen or when n is an integer from 2 to 10 at least one -CHR-CHR- group may additionally represent a substituted or unsubstituted arylene group; indicates one or more optional substituents on the benzene ring; and
- A is a group imparting acidity to the molecule.
- A preferably includes an oxygen atom which is attached to the benzene ring.
- a particular preferred A group is -OH.
- A may be a cation binding group, for example, methoxy.
- the group Ar in X is preferably a substituted or unsubstituted phenyl group.
- suitable Ar groups include 4-nitrophenyl,2-nitrophenyl and 2,4- dinitrophenyl.
- n is preferably an integer from 1 to 3 more preferably n is 1 or 2 in Y and 2 in Z.
- the R groups may also be different for Y and Z.
- the substituent may be, for example, a hydrocarbyl group.
- the hydrocarbyl group may be, for example, an aryl, al yl or alkenyl group which may itself be substituted.
- R is an aryl group
- Y and Z may also comprise other groups including an aromatic ring. For example, in the case where at least one
- -CHR-CHR- group is an arylene group Y and/or z may be:
- Z could be:
- alkyl or alkenyl group which may itself be substituted, or a functional group such as, for example, nitro, amino or substituted a ino, or alkoxy.
- Preferred compounds for use as a cryptand for lithium are those in which n represents 1 in Y and 2 in Z and R is hydrogen or alkyl or the -CHR-CHR- group is a substituted or unsubstituted arylene group and the arylene group is preferably phenylene.
- Preferred compounds for use as a cryptand for sodium are those in which n represents 2 in Y and Z and R is hydrogen or alkyl or the -CHR-CHR- group is a substituted or unsubstituted arylene group and the arylene group is preferably phenylene.
- the cryptands of the present invention are however suitable for complexing cations other than sodium or lithium.
- Such cations include potassium, calcium and magnesium.
- the ion-sensitive dyes represented by the above formula (II) form molecular complexes with certain cations at surprisingly high levels of selectivity. This is accompanied by a change in the absorption spectrum which makes these dyes particularly suitable for use in an optical fibre sensor based upon a probe in which the ion-sensitive compound is immobilised at the tip of the fibre.
- an optical fibre sensor comprising a probe in which an ion sensitive compound of the type illustrated in formula II is immobilised at a tip of a fibre of the optical sensor.
- Optical fibre sensors are discussed in the Alder et al Analyst 1987 Article referred to above and consist of an optical probe and appropriate instrumentation.
- an optical fibre tip is sensitised to cations by placing about l g of Amberlite XAD2 resin (4) on to the tip of the optical fibre (1mm diameter core) (1) and encapsulating it in a porous PTFE membrane (such as Millipore FHUP 50 ⁇ or the like) (2) .
- the membrane is held in place by a heat shrinkable piece of tubing (3) .
- the probe is sensitised by immersion overnight in a methanolic solution of the cryptand reagent followed by washing with distilled water.
- This probe can be used in an instrument of the type that has been described by J.F.Alder and co-workers (Analyst, 1987, 112. 1191) (see above) .
- a chromoionophore should be highly selective for a particular cation, should function in the physiological pH range (typical of from pH 6 to pH 8) , and respond to a metal ion in its normal concentration range in biological fluids such as plasma.
- This invention provides chromoionophores which meet one or more of the above requirements and in particular show surprisingly high selectivity for lithium and sodium cations.
- the chromoionophores (2a) and (3) show higher selectivity for lithium in extraction experiments, as compared with sodium, than any other chromoionophore that has been reported and the chromoinophores (2b) and (4) show better selectivity for sodium, as compared with lithium and potassium, than a compound which has recently been described, as showing 'potential for the colorimetric determination of sodium using procedures allowing the extraction mode', (in E.Chapoteau,
- the compounds of the present invention have many applications in optical and electronic devices which are controlled at least to some extent by cations (e.g. in switching by cations).
- the compounds of the invention may be prepared by, for example,
- the present invention also provides a method for sensing cations, comprising co plexing a compound of the present invention with a cation and determining the change in spectroscopic properties brought about by the complexing.
- Spectroscopic methods for determining the change in properties include measurement of absorbance at the absorption maxima of the chromoionophore and of the appropriate chromoinophore cation complex as illustrated by the spectra shown in Figs. 1, 2 and 3 of the accompanying Drawings.
- Fig. 1 shows the absorption spectrum (300-700nm) of cryptand (2a) in CHCl 3 (8.14x10- 5 mol dm-3) after equilibration with an equal volume of aqueous LiCl at pH 7.0
- the absorbance at 406 run corresponds to the free cryptand and at
- Fig. 2 shows the absorption spectrum (300-800 nm) of cryptand (2a) in CHCl 3 (5.15x10- mol dm- ) after equilibration with equal volumes of aqueous LiCl (1.0 mol dm- ), Nacl (1.0 mol dm- 3 ), and KCl (1.0 mol dm- 3 at pH 9.0 (trishydroxymethylmethylamine/HCl buffer). Under these conditions there is no detectable response to either Na + or + .
- Fig. 3 shows the absorption spectrum (300-800 nm) of cryptand (2b) in CHCl 3 (2.79x10- mol dm- ) after equilibration with equal volumes of aqueous LiCl (1.0 mol dm- ) , Nacl (0.005 mol dm- 3 ), and KCl (1.0 mol dm- 3 ) at pH 9.0 (trishydroxymethylmethylamine/HCl buffer), under these conditions the relative responses for (a) Na + (b) K + , and (c) Li are ca 1 : 2 : 500 based upon absorbance in the 500-600 nm region.
- Phenolic cryptand (lb) (0.0375g, 0.099 mol) was dissolved in an aqueous solution of sodium hydroxide
- K e is based upon changes in absorption at 406 and 534 nm for (2a) and Li+, 402 and 554 nm for (2b) and Li + , Na + and K + , and 402 and 500 nm for (2b) and Ca 2+
- compound (2a) in particular has a remarkable high selectivity for lithium, far greater than anything previously known.
- example 3 was 4 nitrophenyl azophenol diaza 15-crown-5 modified by the addition of a benzene ring fused to the macrocycle and example 4 was 4 nitrophenyl azophenol diaza 18-crown-6 modified by the addition of a benzene ring fused to the macrocycle.
- Compound 3 responds to Li + in the pH range 7-9 and to no other cation of physiological importance (K + ,Na + , Mg 2+ , and Ca 2+ ) with a selectivity ratio for Li + :Na + of >10 4 .
- Compound 4 responds only to Na + at pH 7 and at higher pH the selectivity for Na + :Li + is ca 5000, for Na + :K + is ca 6000, and for Na + :Ca 2+ is ca 4000, no response is observed for Mg ⁇ +.
- the two compounds 3 and 4 are more lipophilic than 2a and 2b and show no extraction into water in the pH range 7-9 and show selectivity for Li + and Na + that is higher than that reported for any other reagents.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6506010A JPH09509395A (en) | 1992-08-13 | 1993-08-12 | Color reagent |
EP93918011A EP0655064A1 (en) | 1992-08-13 | 1993-08-12 | Chromogenic reagents |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929217149A GB9217149D0 (en) | 1992-08-13 | 1992-08-13 | Chromogenic reagents |
GB9217149.5 | 1992-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1994004539A1 true WO1994004539A1 (en) | 1994-03-03 |
WO1994004539A9 WO1994004539A9 (en) | 1995-02-23 |
Family
ID=10720253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1993/001713 WO1994004539A1 (en) | 1992-08-13 | 1993-08-12 | Chromogenic reagents |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0655064A1 (en) |
JP (1) | JPH09509395A (en) |
CA (1) | CA2142117A1 (en) |
GB (1) | GB9217149D0 (en) |
WO (1) | WO1994004539A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2841468A1 (en) * | 2002-06-28 | 2004-01-02 | Oreal | The use in hair dyeing of chromoionophores and/or fluoroionophores as direct coloring agents and in compositions |
US6997963B2 (en) | 2002-06-28 | 2006-02-14 | L'oreal | Use of a chromoionophore and/or fluoroionophore for dyeing human keratin fibres, dyeing compositions and methods |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0340018A2 (en) * | 1988-04-28 | 1989-11-02 | Minnesota Mining And Manufacturing Company | Composition, apparatus and method for sensing ionic components |
-
1992
- 1992-08-13 GB GB929217149A patent/GB9217149D0/en active Pending
-
1993
- 1993-08-12 CA CA 2142117 patent/CA2142117A1/en not_active Abandoned
- 1993-08-12 EP EP93918011A patent/EP0655064A1/en not_active Ceased
- 1993-08-12 WO PCT/GB1993/001713 patent/WO1994004539A1/en not_active Application Discontinuation
- 1993-08-12 JP JP6506010A patent/JPH09509395A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0340018A2 (en) * | 1988-04-28 | 1989-11-02 | Minnesota Mining And Manufacturing Company | Composition, apparatus and method for sensing ionic components |
Non-Patent Citations (3)
Title |
---|
CHEMICAL ABSTRACTS, vol. 116, no. 23, issued 1992, June 8 (Columbus, Ohio, U.S.A.), KRAKOWIAK, KRYSZTOF E. et al. "Preparation and cation com- plexing properties of some macropolycyclic ligands", page 827, column 2, the abstract no. 235603b, & J. ORG. CHEM., 1992, 57 (11), 3166-73, (Eng.) * |
CHEMICAL ABSTRACTS, vol. 118, no. 7, issued 1993, February 15 (Columbus, Ohio, U.S.A.), SHOLL, ALASTAIR F. et al. "The synthesis of phenolic cryptands - efficient acid catalysis in a molecular cavity", page 847, column 1, the abstract no. 59688p, & J. CHEM. SOC., CHEM. COMMUN., 1992, (17), 1252-3, (Eng.) * |
CHEMICAL ABSTRACTS, vol. 118, no. 8, issued 1993, February 22 (Columbus, Ohio, U.S.A.), SHOLL, ALASTAIR F. et al. "Selective chromogenic reagents based upon phenolic cryptands", page 530, column 2, the abstract no. 67815t, & J. CHEM. SOC., CHEM. COMMUN., 1992, (23), 1716-18, (Eng.) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2841468A1 (en) * | 2002-06-28 | 2004-01-02 | Oreal | The use in hair dyeing of chromoionophores and/or fluoroionophores as direct coloring agents and in compositions |
EP1380286A1 (en) * | 2002-06-28 | 2004-01-14 | L'oreal | Use of a chromoionophores and/or a fluoroionophore for dyeing human keratinic fibers, compositions and processes thereof |
US6997963B2 (en) | 2002-06-28 | 2006-02-14 | L'oreal | Use of a chromoionophore and/or fluoroionophore for dyeing human keratin fibres, dyeing compositions and methods |
Also Published As
Publication number | Publication date |
---|---|
GB9217149D0 (en) | 1992-09-23 |
CA2142117A1 (en) | 1994-03-03 |
EP0655064A1 (en) | 1995-05-31 |
JPH09509395A (en) | 1997-09-22 |
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