Abstract: A photopolymerization initiator which is a compound having a structure in which one or more carbonyl groups that link to a carbon atom are further directly bonded to an aromatic ring of an aromatic acyl group that bonds to a phosphorus atom in an acylphosphine oxide structure. A producing method of a photopolymerization initiator produces the photopolymerization initiator. In a polymerizable composition and an ink jet recording method, the photopolymerization initiator is used. Furthermore, an acylphosphine oxide compound has a partial structure represented by Formula 1 or Formula 2.

Abstract: An object of the present invention is to provide a method for producing a peptide with high efficiency, which is capable of deprotecting a protective group in a side chain with a weak acid; a protective group-forming reagent having excellent deprotective properties; and a compound. According to the present invention, there is provided a method for producing a peptide, including a peptide chain extending step of reacting a first amino acid or peptide in which a side chain is protected with a first protective group represented by Formula (1) with a second amino acid or peptide to obtain a third amino acid or peptide, and a first deprotecting step of deprotecting the first protective group of the third amino acid or peptide, in which, in the first deprotecting step, the deprotection is performed using a deprotection solution having a trifluoroacetic acid content of 10% by mass or less.

Abstract: An object of the present invention is to provide a method for producing a peptide with high purity and high efficiency, a protective group-forming reagent having excellent deprotective properties, and a novel condensed polycyclic compound. According to the present invention, there are provided a method for producing a peptide including a step of using a polycyclic compound represented by Formula (1), a protective group-forming reagent containing the polycyclic compound, and the polycyclic compound. At least one of R1 to R8 and R110 has RA, RA represents an aliphatic hydrocarbon group or an organic group having an aliphatic hydrocarbon group, and at least one aliphatic hydrocarbon group has 3 or more carbon atoms.

Abstract: A composition includes a pigment, a pigment derivative which has at least one group selected from the group consisting of groups represented Formula (2): -L-NH—R2, and the like, a dispersant which has a constitutional unit having an adsorbing group and a constitutional unit having a steric repulsive group, and is a random copolymer or an alternating copolymer, and a solvent. In Formula (2), L represents —CO—, —SO2—, or —PO(R21)—, R21 represents a hydrogen atom or a monovalent organic group having 1 or more carbon atoms, R2 represents —COR22, —SO2R22, or —PO(R22)2, and R22's each independently represent a hydrogen atom or a monovalent organic group having 1 or more carbon atoms.

Abstract: A photopolymerization initiator which is a compound having a structure in which one or more carbonyl groups that link to a carbon atom are further directly bonded to an aromatic ring of an aromatic acyl group that bonds to a phosphorus atom in an acylphosphine oxide structure. A producing method of a photopolymerization initiator produces the photopolymerization initiator. In a polymerizable composition and an ink jet recording method, the photopolymerization initiator is used. Furthermore, an acylphosphine oxide compound has a partial structure represented by Formula 1 or Formula 2.

Abstract: A composition includes a near infrared absorbing pigment, a compound represented by Formula (1), a primary to tertiary amine compound having a molecular weight of 500 or less and a boiling point of 300° C. or lower, a resin, and a solvent, in which the compound represented by Formula (1) has a solubility in propylene glycol methyl ether acetate at 25° C. of 0.1 g/L or higher, and a content of the amine compound in a total solid content of the composition is 10 to 5000 mass ppm.

Abstract: A photopolymerization initiator which is a compound having a structure in which one or more carbonyl groups that link to a carbon atom are further directly bonded to an aromatic ring of an aromatic acyl group that bonds to a phosphorus atom in an acylphosphine oxide structure. A producing method of a photopolymerization initiator produces the photopolymerization initiator. In a polymerizable composition and an ink jet recording method, the photopolymerization initiator is used. Furthermore, an acylphosphine oxide compound has a partial structure represented by Formula 1 or Formula 2.

Abstract: An organic electroluminescent element containing a light emitting material represented by the following general formula (1) and a host material represented by the general formula (H-1) in a light emitting layer. The organic electroluminescent element has low driving voltage, high luminous efficiency, and excellent durability. L represents O, NRC0, or CRC1RC2; RC0 to RC2 each represents a hydrogen atom or a substituent; RC3 to RC6 each represents a substituent; nC3 and nC6 each represents an integer of 0 to 3; nC4 and nC5 each represents an integer of 0 to 4; RH111 to RH118 each represents a hydrogen atom or a substituent; X represents any one of O, S, NRH119, CRH120RH121, and SiRH122RH123, and RH119 to RH123 each represents a substituent; the ring A represents a benzene ring; and the ring B represents a 5- or 6-membered ring.

Abstract: A composition includes: an infrared absorbing pigment; an acid or a base that undergoes neutralization or a salt interchange reaction with the infrared absorbing pigment; an acidic or basic resin; and a solvent, in which in a case where the acid is included, the acidic resin is included, in a case where the base is included, the basic resin is included, and in a case where a pKa of the acid is represented by pKa1A, a conjugate acid pKa of the base is represented by pKa1B, a pKa of the acidic resin is represented by pKa2A, and a conjugate acid pKa of the basic resin is represented by pKa2B, any one of the following Expression A or Expression B is satisfied.

Abstract: Objects of the present invention is to provide an organic semiconductor element having high mobility and to provide a composition for forming an organic semiconductor film with which an organic semiconductor film having high mobility can be formed, a method of manufacturing an organic semiconductor element formed from the composition for forming an organic semiconductor film, and a method of manufacturing an organic semiconductor film. The organic semiconductor element according to the present invention has a semiconductor active layer including a compound that is represented by Formula 1 and has a molecular weight of 3,000 or less. The composition for forming an organic semiconductor film according to the present invention contains a compound that is represented by Formula 1 and has a molecular weight of 3,000 or less, and a solvent.

Abstract: A compound which, when used for organic semiconductor films in organic thin-film transistors, makes the organic thin-film transistors exhibit a high carrier mobility, a material for an organic thin-film transistor for which the compound is used, a composition for an organic thin-film transistor, an organic thin-film transistor and a method for manufacturing the same, and an organic semiconductor film. The organic thin-film transistor contains a compound represented by General Formula (1) in an organic semiconductor film (organic semiconductor layer) thereof.

Abstract: Provided are a curable composition, a cured film, an optical filter, a solid image pickup element, an image display device, an infrared sensor, a dispersing auxiliary agent, a dispersion, and a method of manufacturing a dispersion. With the curable composition, a cured film having excellent moisture resistance in which the formation of an aggregate derived from a compound having a colorant skeleton is suppressed can be formed. This curable composition includes: a compound A having a structure in which at least one functional group selected from an acid group having a pKa of 3 or lower and a Clog P value of ?1.1 or higher, an anionic group obtained by dissociating one or more hydrogen atoms from the acid group, or a salt of the acid group is bonded to a ?-conjugated structure of a colorant skeleton and having a maximum absorption wavelength in a wavelength range of 650 to 1200 nm; a curable compound; and a solvent.

Abstract: An object of the present invention is to provide an organic thin-film transistor which has an organic semiconductor film produced using a compound having an excellent solubility in organic solvents and has an excellent carrier mobility, a compound, a material for an organic thin-film transistor for which the compound is used, a composition for an organic thin-film transistor, a method for manufacturing an organic thin-film transistor, and an organic semiconductor film. An organic thin-film transistor of the present invention contains a compound which is represented by General Formula (1) or General Formula (2) in an organic semiconductor film (organic semiconductor layer) thereof and has a molecular weight of 3,000 or less. In General Formula (1) and General Formula (2), at least one of R5, . . . , or R8 is a group other than a hydrogen atom.

Abstract: An acylphosphine oxide compound represented by Formula 1-1 or Formula 2-1 which can be used as a photopolymerization initiator. In Formula 1-1 and Formula 2-1, A represents an m-valent group, L's each independently represent a single bond or a divalent linking group, R1's each independently represent an alkyl group having 1 to 8 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, R2 and R3 each independently represent an alkyl group, an aryl group, or an alkoxy group, m represents an integer of 3 or more, n1's each independently represent an integer of 0 to 4, and n2's each independently represent an integer of 0 to 5.

Abstract: An object of the present invention is to provide an organic thin film transistor having excellent carrier mobility and excellent atmospheric stability, a novel compound, an organic thin film transistor material, an organic semiconductor film, an organic thin film transistor composition, and a method of manufacturing an organic thin film transistor using this. The organic thin film transistor according to the present invention has an organic semiconductor film containing a compound represented by Formula (1) or (2).

Abstract: A photopolymerization initiator is an acylphosphine oxide compound represented by Formula 1-1 or Formula 2-1. A polymerizable composition or an ink jet recording method is a polymerizable composition or an ink jet recording method in which the photopolymerization initiator is used. In addition, an acylphosphine oxide compound represented by Formula 1-1 or Formula 2-1 which can be preferably used as the photopolymerization initiator. In Formula 1-1 and Formula 2-1, A represents an m-valent group, L's each independently represent a single bond or a divalent linking group, R1's each independently represent an alkyl group having 1 to 8 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, R2 and R3 each independently represent an alkyl group, an aryl group, or an alkoxy group, m represents an integer of 3 or more, n1's each independently represent an integer of 0 to 4, and n2's each independently represent an integer of 0 to 5.

Abstract: An object of the present invention is to provide a compound which, when used for organic semiconductor films in organic thin-film transistors, makes the organic thin-film transistors exhibit a high carrier mobility, a material for an organic thin-film transistor for which the compound is used, a composition for an organic thin-film transistor, an organic thin-film transistor and a method for manufacturing the same, and an organic semiconductor film. An organic thin-film transistor of the present invention contains a compound represented by General Formula (1) in an organic semiconductor film (organic semiconductor layer) thereof.

Abstract: Provided are a coating solution for a non-light-emitting organic semiconductor device having high carrier mobility that contains a compound represented by Formula (2) and a solvent having a boiling point of equal to or higher than 100° C., an organic transistor, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a method for manufacturing an organic transistor, and a method for manufacturing an organic semiconductor film. (In Formula (2), R11 and R12 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxy group and may have a substituent, and an aromatic portion in Formula (2) may be substituted with a halogen atom.

Abstract: Provided are a coating solution for a non-light-emitting organic semiconductor device having high carrier mobility that contains a compound represented by Formula (2) and a solvent having a boiling point of equal to or higher than 100° C., an organic transistor, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a method for manufacturing an organic transistor, and a method for manufacturing an organic semiconductor film. (In Formula (2), R11 and R12 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxy group and may have a substituent, and an aromatic portion in Formula (2) may be substituted with a halogen atom.

Abstract: Provided are an organic transistor with high carrier mobility having a semiconductor active layer containing a compound which is represented by the following formula and has a molecular weight of equal to or less than 3,000, a compound, an organic semiconductor material for a non-light-emitting organic semiconductor device, a material for an organic transistor, a coating solution for a non-light-emitting organic semiconductor device, a method for manufacturing an organic transistor, a method for manufacturing an organic semiconductor film, an organic semiconductor film for a non-light-emitting organic semiconductor device, and a method for manufacturing an organic semiconductor material.