Abstract: The invention is a method for producing ?-aminopentadienoate derivatives of formula (1), the method comprising reacting a streptocyanine derivative of formula (2) with an ester derivative of formula (3) in the presence of an organic base.

Abstract: A method of producing a near-infrared absorbing dye compound, useful for image forming materials, infrared heat-sensitive recording devices, optical film materials, and the like, containing a process of reacting a compound represented by formula (I) with halogenating agent. wherein R111, R112, R121, R122, R131, R132, R141 and R142 each independently represent a hydrogen atom, an aliphatic group or an aromatic group; R103, R113, R123, R133 and R143 each independently represent a substituent; and n103, n113, n123, n133 and n143 each independently denote an integer from 0 to 4.

Abstract: A compound of the following formula (I): wherein Q11, Q21, Q31 and Q41 represent a non-metallic atomic group necessary for forming a hetero ring; R12, R22, R32 and R42 represent a substituent; n11, n12, n21, n22, n31, n32, n41 and n42 indicate an integer of from 0 to 6; provided that (n11+n21+n31+n41) is not 0; M1 represents two hydrogen atoms, two monovalent metal atoms, a divalent metal atom, or a divalent substituted metal atom including a trivalent or tetravalent metal atom.

Abstract: A method of producing a compound represented by formula (I), including reacting a compound represented by formula (II) with a compound represented by formula (III): wherein, in formulas (I) to (III), Ar31 represents a divalent aromatic group or a divalent heterocyclic group; L21 represents a single bond, —O—, or —N(R26)—; Z21 represents —O— or —N(R27)—; R21, R22, R23, R24, and R27 each independently represent a hydrogen atom or a substituent; R25, R26, R31, and R32 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group bonding through its carbon atom; and n21 represents 0 or 1, wherein any of R21, R22, R23, R24, and R27 may bond to one another to form a ring, and any of Ar31, R31, and R32 may bond to one another to form a ring.

Abstract: A compound of the following formula (I): wherein L11, L21, L31 and L41 represent a divalent group; Q11, Q21, Q31 and Q41 represent a non-metallic atomic group necessary for forming a hetero ring; R12, R22, R32 and R42 represent a substituent; n11, n12, n21, n22, n31, n32, n41 and n42 indicate an integer of from 0 to 6; provided that (n11+n21+n31+n41) is not 0; M1 represents two hydrogen atoms, two monovalent metal atoms, a divalent metal atom, or a divalent substituted metal atom including a trivalent or tetravalent metal atom.

Abstract: A method of producing a near-infrared absorbing dye compound, useful for image forming materials, infrared heat-sensitive recording devices, optical film materials, and the like, containing a process of reacting a compound represented by formula (I) with halogenating agent. wherein R111, R112, R121, R122, R131, R132, R141 and R142 each independently represent a hydrogen atom, an aliphatic group or an aromatic group; R103, R113, R123, R133 and R143 each independently represent a substituent; and n103, n113, n123, n133 and n143 each independently denote an integer from 0 to 4.

Abstract: The present invention provides a method of producing a compound represented by the following formula (1) or a compound represented by the following formula (4) or a tautomer thereof, the method including reacting a compound represented by the following formula (2) or a compound represented by the following formula (5) or a tautomer thereof with a compound represented by the following formula (3) or a compound represented by the following formula (6) in the presence of an aluminum alkoxide compound.

Abstract: The invention provides an aryl ethynyl phthalic acid and derivatives thereof (including fluorine-containing compounds) represented by Formulae 1, 3, 5, 4A and 5A including the structure of Formula 2, and method of producing these compounds, in which an aryl ethynyl phthalic anhydride is formed by subjecting an aryl phthalic acid to ring closing:

Abstract: An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.

Abstract: A method for producing a pyridine compound of formula (II), comprising oxidizing a dihydropyridine compound of formula (I) in the presence of (i) at least one acid and at least one nitrous acid or a nitrite, or (ii) at least one base, and a hydrogen peroxide solution: wherein in formulae (I) and (II), R1 to R5 represents a hydrogen atom, or a substituent; L represents an alkyl group, an alkoxy group, an aryl group, or an aryloxy group.

Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): 1

Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.

Abstract: The invention is a method for producing &dgr;-aminopentadienoate derivatives of formula (1), the method comprising reacting a streptocyanine derivative of formula (2) with an ester derivative of formula (3) in the presence of an organic base. In formulae (1) to (3), R1 represents an alkyl group or an aryl group; R2, R3, R4 and R5 independently represent a hydrogen atom or an alkyl group; R2 and R3, or R4 and R5 may bond to each other to form a ring; Y represents an electron attractive group; X represents an acid radical; n indicates 0 or a positive number, which is no more than 5; Y may bond to R1 to form a ring.

Abstract: A process for producing cellulose acetate by acetylation reaction with cellulose as a raw material, wherein acetate is used as an acetylating agent.

Abstract: A method of making cellulose polymer solution comprises dissolving a cellulose polymer raw material in a chlorine-free organic solvent system under a high temperature and a high pressure condition belonging to the nearcritical or the supercritical region of the system. By removing the solvent from the thus obtained cellulose polymer solution, cellulose polymer powders are also produced.

Abstract: A producing method of a cellulose polymer powder is provided, which comprises dissolving a cellulose polymer by exposure to an organic solvent containing, as the main component, an ester-based solvent having from 2 to 8 carbon atoms, a ketone-based solvent having from 4 to 10 carbon atoms, or an alcohol-based solvent having from 3 to 6 carbon atoms, and carbon dioxide, and then removing the carbon dioxide and the organic solvent from the solution. A producing method of an organic solvent solution of a cellulose polymer is also provided.

Abstract: An azomethine compound is represented by the formula (I).

Abstract: A method for producing a pyridine compound of formula (II), comprising oxidizing a dihydropyridine compound of formula (I) in the presence of (i) at least one acid and at least one nitrous acid or a nitrite, or (ii) at least one base, and a hydrogen peroxide solution: 1

Abstract: An azomethine compound is represented by the formula (I). wherein and R1, L1, L2, R3 and R4 have 20 to 50 carbon atoms in total.

Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): 1