Classifications

• • 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
  • C09B11/00—Diaryl- or thriarylmethane dyes
  • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
  • C09B11/10—Amino derivatives of triarylmethanes
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
  • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
  • C07D311/78—Ring systems having three or more relevant rings
  • C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans
  • C07D311/82—Xanthenes
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
  • C07B61/00—Other general methods
• • 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
  • C09B11/00—Diaryl- or thriarylmethane dyes
  • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
  • C09B11/10—Amino derivatives of triarylmethanes
  • C09B11/12—Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
• • 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
  • C09B11/00—Diaryl- or thriarylmethane dyes
  • C09B11/28—Pyronines ; Xanthon, thioxanthon, selenoxanthan, telluroxanthon dyes

Definitions

• the present invention relates to a xanthene compound and a method for producing the same.
• Xanthene compounds are important compounds as pigments due to their excellent color development properties, and are used in a wide variety of fields.
• One of the problems with these xanthene compounds is that they are inferior in heat resistance to dyes having other structures, and various studies have been made to overcome this problem.
• Patent Document 1 an intermolecular salt-type xanthene compound having a specific structure in a colored photosensitive composition
• An object of the present invention is to provide a xanthene compound with excellent heat resistance and a method for producing the same.
• the present inventors have found that the benzene ring having a cationic xanthene skeleton and bonded to the pyran ring of the xanthene skeleton has at least one fluorine atom or chlorine atom and at least one anionic
• the inventors have found that the above problems can be solved by an inner salt-type xanthene compound into which a group has been introduced, and have completed the present invention.
• R 1 to R 3 and R 9 to R 11 each independently represent a hydrogen atom, a halogen atom, a cyano group, a nitro group, a hydroxy group, a sulfone group, an alkyl group having 1 to 8 carbon atoms, or 3 carbon atoms.
• R 4 to R 8 are each independently a hydrogen atom, an organic group, a fluorine atom, a chlorine atom or an anionic group, and at least one of R 4 to R 8 is a fluorine atom or a chlorine atom.
• R 12 to R 15 each independently represent a heteroatom selected from a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a nitrogen atom, an oxygen atom and a sulfur atom; a 5- to 8-membered heteroaryl group having 1 to 3, wherein the alkyl group is optionally substituted with an aryl group having 6 to 20 carbon atoms, R 1 and R 12 , R 2 and R 13 , R 11 and R 15 and R 10 and R 14 may be linked to form a 6-membered ring, R 12 and R 13 and R 14 and R 15 may be linked to form a 3- to 6-membered ring).
• the anionic group is —SO 3 — or —SO 2 N — SO 2 R f (wherein R f is a group having 1 to 1 carbon atoms in which at least two hydrogen atoms are substituted with fluorine atoms
• the xanthene compound of [1] which is an alkyl group of 4).
• [5] A method for producing a xanthene compound according to any one of [1] to [4], Formula (10): (wherein R 4 to R 8 have the same meanings as in formula (1) above) were converted to formulas (11) and (12) in the presence of an acid: (In the formula, R 1 to R 3 and R 12 to R 13 have the same meanings as in formula (1); R 9 to R 11 and R 14 to R 15 are the same as defined in the above formula (1)), resulting in formula (13): A method for producing a xanthene compound of formula (1), comprising oxidizing a compound represented by (wherein R 1 to R 15 have the same meanings as in formula (1) above).
• a xanthene compound with excellent heat resistance is provided together with its production method.
• the xanthene compound of the present invention has the following formula (1): (In the formula, R 1 to R 3 and R 9 to R 11 each independently represent a hydrogen atom, a halogen atom, a cyano group, a nitro group, a hydroxy group, a sulfone group, an alkyl group having 1 to 8 carbon atoms, or 3 carbon atoms.
• R 4 to R 8 are each independently a hydrogen atom, an organic group, a fluorine atom, a chlorine atom or an anionic group, and at least one of R 4 to R 8 is a fluorine atom or a chlorine atom.
• R 12 to R 15 each independently represent a heteroatom selected from a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group having 6 to 20 carbon atoms, or a nitrogen atom, an oxygen atom and a sulfur atom; a 5- to 8-membered heteroaryl group having 1 to 3, wherein the alkyl group is optionally substituted with an aryl group having 6 to 20 carbon atoms, R 1 and R 12 , R 2 and R 13 , R 11 and R 15 and R 10 and R 14 may be linked to form a 6-membered ring, R 12 and R 13 and R 14 and R 15 may be linked to form a 3- to 6-membered ring).
• halogen atoms include fluorine, chlorine, bromine and iodine atoms.
• Alkyl groups having 1 to 8 carbon atoms may be linear or branched and are methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, Includes pentyl, hexyl, heptyl, octyl.
• the cycloalkyl group having 3 to 8 carbon atoms includes cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.
• the alkyl portion of the alkoxy group having 1 to 8 carbon atoms may be linear or branched, and the above description of the alkyl group applies to the alkyl portion. Specific examples include methoxy, ethoxy, propyloxy, isopropyloxy, n-butyloxy, isobutyloxy, sec-butyloxy, tert-butyloxy, pentyloxy, hexyloxy, heptyloxy and octyloxy.
• Aryl groups having 6 to 20 carbon atoms are phenyl, o-tolyl, m-tolyl, p-tolyl, 2,3-xylyl, 2,4-xylyl, 2,6-xylyl, 2-methyl-6-ethyl It includes phenyl, 2,6-diethylphenyl, 2,6-diisopropylphenyl, 3,4-xylyl, 3,5-xylyl, naphthyl, anthracenyl.
• the statements regarding radicals or aryl radicals having 6 to 20 carbon atoms apply.
• the acyl group includes an acetyl group, a benzoyl group and the like.
• a 5- to 8-membered heteroaryl group having 1 to 3 heteroatoms selected from a nitrogen atom, an oxygen atom and a sulfur atom may be monocyclic or condensed, imidazolyl, benzimidazolyl, pyrazolyl , pyrrolyl, indazolyl, indolyl, triazolyl, furyl, oxazolyl, isoxazolyl, thienyl, thiazolyl, isothiazolyl.
• the above alkyl group, cycloalkyl group and alkoxy group may be substituted with a halogen atom or an aryl group having 6 to 20 carbon atoms, such as benzyl.
• aryl group, heteroaryl group and acyl group may be substituted with a halogen atom, a cyano group, a nitro group and a hydroxy group.
• R 1 and R 11 may be the same or different, preferably the same, and may be, for example, a hydrogen atom.
• R 2 and R 10 may be the same or different, preferably the same, and may be, for example, a hydrogen atom, etc.
• R 3 and R 9 may be the same or different. may be the same, preferably the same, and may be, for example, a hydrogen atom. Among them, it is preferable that all of R 1 and R 11 , R 2 and R 10 , and R 3 and R 9 are the same.
• the anionic group is not particularly limited as long as it is in the form of an anion.
• Sulfonic acid-based and sulfonimide-based monovalent anion groups are preferable because they are less affected by changes in the surrounding environment (for example, changes in pH).
• Specific anionic groups include, for example, —SO 3 ⁇ , —SO 2 N — SO 2 R f (wherein R f is a carbon atom in which at least two hydrogen atoms are substituted with fluorine atoms). and -COO-, preferably -SO 3 - and -SO 2 N -SO 2 R f .
• anionic groups When there are two or more anionic groups, at least one anionic group forms an inner salt, but other anionic groups may be in the form of salts, for example alkali metal salts (Na salts, K salts, etc.), ammonium salts and the like.
• alkali metal salts Na salts, K salts, etc.
• ammonium salts and the like.
• At least one of R 4 to R 8 is a fluorine atom or a chlorine atom, and at least one is an anionic group. If R 4 -R 8 other than fluorine atoms, chlorine atoms and anionic groups are present, they are hydrogen atoms or organic groups. The organic group shall not be in ionic form. Organic groups include, for example, sulfonic acid or sulfonic acid ester, sulfonamide, sulfonimide, carboxylic acid or carboxylic acid ester, and carboxylic amide groups, which are not in ionic form.
• organic groups include -SO 3 R, -SO 2 NR 2 , -SO 2 NHSO 2 R, -COOR, -CONR 2 (here, R may be substituted with hydrogen or fluorine atom). an alkyl group having 1 to 4 carbon atoms).
• At least one of R 4 to R 8 is a fluorine atom or a chlorine atom
• at least one of R 4 and R 8 can be a fluorine atom or a chlorine atom
• both R 4 and R 8 are a fluorine atom Or it may be a chlorine atom.
• one is preferably an anionic group, and one of R 5 to R 7 is preferably an anionic group.
• R 12 to R 15 5 to 8 having 1 to 3 heteroatoms selected from alkyl groups having 1 to 8 carbon atoms, aryl groups having 6 to 20 carbon atoms, and nitrogen, oxygen and sulfur atoms
• R 1 -R 3 and R 9 -R 11 apply.
• the explanations for R 1 to R 3 and R 9 to R 11 also apply to alkyl groups substituted by aryl groups having 6 to 20 carbon atoms.
• R 1 and R 12 , R 2 and R 13 , R 11 and R 15 and R 10 and R 14 may be linked to form a 6-membered ring, and the 6-membered ring includes a piperidine ring, pyridine ring, pyrimidine ring, quinoline ring, isoquinoline ring and the like. These rings may be fused or substituted with other rings.
• R 12 and R 13 and R 14 and R 15 may be linked to form a 3- to 6-membered ring, and the 3- to 6-membered ring includes a piperidine ring, piperazine ring, pyrrolidine ring and morpholine ring , thiomorpholine ring, pyridine ring, pyrazine ring, pyrimidine ring, quinoline ring, isoquinoline ring, imidazole ring, oxazole ring, imidazolidine ring, pyrazolidine ring, isoxazolidine ring, isothiazolidine ring and the like. These rings may be fused or substituted with other rings.
• R 12 and R 13 may be the same or different.
• R 14 and R 15 may be the same or different.
• the combination of R 12 and R 13 and the combination of R 14 and R 15 may be the same or different.
• R 4′ and R 8′ are a hydrogen atom, a fluorine atom or a chlorine atom, at least one of which is a fluorine atom or a chlorine atom, preferably both of which are a fluorine atom or a chlorine atom
• R 5′ to R 7′ are hydrogen atoms or anionic groups, at least one of which is an anionic group, preferably one of R 5′ to R 7′ is an anionic group
• the rest are hydrogen atoms
• R 12′ to R 15′ are an alkyl group having 1 to 8 carbon atoms or an aryl group having 6 to 20 carbon atoms, and the alkyl group is substituted with an aryl group having 6 to 20 carbon atoms).
• the xanthene compound of the present invention has a maximum absorption wavelength in the range of 520 to 580 nm when the ultraviolet-visible absorption spectrum is measured at around room temperature (about 25°C) using a solution prepared by dissolving it in an organic solvent.
• the xanthene compound of the present invention has excellent heat resistance.
• the color difference ( ⁇ E * ab ) in the color value before and after the heat treatment can be reduced.
• the color difference ⁇ E * ab before and after heat treatment at 230° C. for 1 hour can be less than 6.0.
• the xanthene compound of the present invention can be obtained by a production method including the following steps.
• the total amount of the compounds represented by the formulas (11) and (12) can be 2 to 6 mol per 1 mol of the compound represented by the formula (10). It is preferable to use the compound of formula (11) and the compound of formula (12) in equal molar amounts.
• the reaction is carried out in the presence of acid.
• the acid may be an organic acid (eg, acetic acid, p-toluenesulfonic acid, etc.) or an inorganic acid (eg, sulfuric acid, hydrochloric acid, etc.), preferably an inorganic acid, more preferably sulfuric acid.
• the reaction may be performed in a solvent.
• solvent include known and commonly used organic solvents (eg, acetic acid, etc.) and inorganic solvents (eg, water, etc.).
• the reaction can be carried out at 100-160°C, preferably 110-140°C.
• reaction liquid containing the obtained compound of formula (13) is dropped into water to crystallize, filtration, washing and drying can be carried out. Separation and purification by column chromatography may be performed.
• the compound of formula (13) may be produced by reacting the compound of formula (10) with the compound of formula (11) and then reacting the compound of formula (12).
• the compound of formula (11) is preferably 1.0 to 1.2 mol
• the compound of formula (12) is preferably 1.0 to 2.0 mol, per 1 mol of the compound of formula (10). is preferred.
• the compound of formula (10) and the compound of formula (12) may be reacted first, and then the compound of formula (11) may be reacted.
• This production method is advantageous when the object is a compound in which the structures of the two rings condensed to the pyran ring of the xanthene skeleton are different.
• step B the compound represented by formula (13) is oxidized with an oxidizing agent to obtain the compound represented by formula (1).
• the oxidizing agent includes iron (III) chloride, p-chloranil, etc., preferably iron (III) chloride.
• the reaction can be carried out in a solvent.
• the solvent include water, hydrochloric acid, sulfuric acid and the like, preferably an aqueous hydrochloric acid solution.
• the reaction can be carried out at 20-100°C, preferably 60-100°C.
• the anionic group is a —SO 3 — group
• it can be converted to —SO 2 N — SO 2 R f by reacting RfSO 2 NH 2 .
• Rf is synonymous with formula (1).
• the obtained compound of formula (1) can be purified. Purification includes, for example, purification by column chromatography, washing with a solvent, and purification by recrystallization.
• the xanthene compound of the present invention can be used for producing various paints, water-based or oil-based inks, etc., and is also useful as a functional dye for recording materials and the like.
• the xanthene compound of the present invention can be used in other organic dye materials, inorganic dye materials, thermoplastic resins, thermosetting resins, photocurable resins, heavy metal deactivators, metallic soaps (for example, , alkali metal, alkaline earth metal or zinc metal soap), hydrotalcite, surfactants (e.g. nonionic, cationic, anionic or amphoteric surfactants), antistatic agents, flame retardants (e.g.
• halogen Flame retardants phosphorus flame retardants or metal oxide flame retardants
• lubricants e.g., ethylenebisalkylamide
• antioxidants e.g., UV absorbers, processing aids, fillers, etc. Used in combination with various additives, etc. be able to.
• the xanthene compound was evaluated as follows. ⁇ Heat resistance> The compounds of Examples and Comparative Examples are dissolved in 2 g of N-methylpyrrolidone, and 0.986 g of resin (Cychromer P (ACA) Z320 manufactured by Daicel Chemical) and 4 wt% leveling agent in propylene glycol monomethyl ether acetate (PMA) ( A solution was prepared by adding 0.014 g of a solution of BYK-333) manufactured by BYK Chemie. The resulting solution was applied to a glass plate to a thickness of 2 ⁇ m and prebaked on a hot plate at 100° C. for 3 minutes.
• resin Cychromer P (ACA) Z320 manufactured by Daicel Chemical
• PMA propylene glycol monomethyl ether acetate
• 2,6-dichlorobenzaldehyde 0. 04 mol and 0.10 mol of 20% fuming sulfuric acid were mixed and stirred at 70° C. for 20 hours. After cooling to room temperature, the reaction solution was added dropwise to water and washed with toluene. 0.08 mol of diethylaminophenol and 0.50 mol of sulfuric acid were mixed with the obtained aqueous layer, and the mixture was kept at 90° C. for 17 hours and then stirred at 120° C. for 1 hour to react.
• Examples 1 to 4 Compared to Comparative Example 1, Examples 1 to 4 have a smaller color difference ( ⁇ E * ab ) in color value before and after holding at 230° C., indicating that the heat resistance is improved.
• the xanthene compound of the present invention has excellent heat resistance and can be used for producing various paints, water-based or oil-based inks, etc., and is also useful as a functional dye for recording materials and the like.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Plural Heterocyclic Compounds (AREA)
• Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

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• 2022
  • 2022-06-17 KR KR1020247001443A patent/KR20240021930A/ko not_active Ceased
  • 2022-06-17 CN CN202280049420.1A patent/CN117642469A/zh active Pending
  • 2022-06-17 JP JP2023535190A patent/JPWO2023286526A1/ja active Pending
  • 2022-06-17 US US18/578,857 patent/US20240317702A1/en active Pending
  • 2022-06-17 EP EP22841870.3A patent/EP4372056A1/en not_active Withdrawn
  • 2022-06-17 WO PCT/JP2022/024416 patent/WO2023286526A1/ja not_active Ceased
  • 2022-07-06 TW TW111125309A patent/TW202311244A/zh unknown

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