Abstract:
An object of the invention is to provide a method for efficiently producing an acyloxysilane which is useful as a functional chemical, an acyloxysilane obtained thereby, and the use thereof. The present invention provides: a method for producing an acyloxysilane, including a reaction step of reacting an alkoxysilane with a carboxylic anhydride in the presence of a catalyst, wherein the alkoxysilane is a specified alkoxysilane represented by General Formula (I), the carboxylic anhydride is a specified carboxylic acid represented by General Formula (IIA) or (IIB), the catalyst is an acid catalyst, and an acyloxysilane obtained in the reaction step is a specified acyloxysilane represented by General Formula (IIIA) or (IIIB); and the use of the acyloxysilane as a surface treatment agent or the like.
Abstract:
The purpose of the present invention is to provide a method for producing an oligosiloxane and an oligosiloxane synthesizer, by which an oligosiloxane can be efficiently produced. An oligosiloxane can be efficiently produced by the method for producing an oligosiloxane, which includes a condensation step for generating a hydrosiloxane having a structure represented by the following Formula (d) by reacting an alkoxysilane having a structure represented by the following Formula (b) with a hydrosilane having a structure represented by the following Formula (c) in the presence of a boron compound having Lewis acidity, and a hydrosilylation step for generating an alkoxysiloxane having a structure represented by the following Formula (f) by reacting the hydrosiloxane having the structure represented by Formula (d) generated in the condensation step with a carbonyl compound represented by the following Formula (E) in the presence of a boron compound having Lewis acidity. Moreover, an oligosiloxane having arbitrary substituent sequences can be produced.
Abstract:
An object of the invention is to provide a method for efficiently producing an acyloxysilane which is useful as a functional chemical, an acyloxysilane obtained thereby, and the use thereof. The present invention provides: a method for producing an acyloxysilane, including a reaction step of reacting an alkoxysilane with a carboxylic anhydride in the presence of a catalyst, wherein the alkoxysilane is a specified alkoxysilane represented by General Formula (I), the carboxylic anhydride is a specified carboxylic acid represented by General Formula (IIA) or (IIB), the catalyst is an acid catalyst, and an acyloxysilane obtained in the reaction step is a specified acyloxysilane represented by General Formula (IIIA) or (IIIB); and the use of the acyloxysilane as a surface treatment agent or the like.
Abstract:
The purpose of the present invention is to provide silanol compounds that can be used as raw materials of siloxane compounds and the like, and a composition of the silanol compounds, as well as to provide a production method that makes it possible to produce silanol compounds at excellent yield. A composition comprising 5 mass % to 100 mass % of a silanol compound represented by Formulas (A) to (C) can be prepared by devising to produce silanol compounds under water-free conditions, to produce silanol compounds in a solvent having the effect of suppressing the condensation of silanol compounds, and to perform other such processes, the composition being able to be used as a raw material or the like of siloxane compounds because the silanol compounds can be stably present in the resulting composition.
Abstract:
A metal complex exhibits blue light emission of high color purity and has a color purity of small temperature dependence, particularly in the blue region. Specifically, the metal complex is represented by Formula (1a): wherein M is a metal atom; R0 is a divalent linking group; each j independently represents 0 or 1; RP1, RP2, RP3, RP4 and RP6 each independently represents a hydrogen atom or the like; RP5 represents a halogen atom or the like; m is an integer of from 1 to 3, n is an integer of from 0 to 2, and m+n is 2 or 3; and the portion represented by Formula (2): represents a bidentate ligand; wherein Rx and Ry are an atom bonding to the metal atom M, and each independently represents a carbon atom, an oxygen atom or a nitrogen atom.
Abstract:
The present invention provides a method for producing a silanol compound capable of efficiently producing a silanol compound. The method for producing a silanol compound includes a proton exchange step of forming a silanol compound having a structure represented by following formula (c) by reacting a silicate having a structure represented by following formula (a) with an acidic compound having an acid dissociation constant pKa of −1 to 20 in dimethyl sulfoxide (DMSO).
(In formula (a), Qi+ represents an i-valent cation and i represents an integer of 1 to 4).
Abstract:
A metal complex exhibits blue light emission of high color purity and has a color purity of small temperature dependence, particularly in the blue region. Specifically, the metal complex is represented by Formula (1a): wherein M is a metal atom; R0 is a divalent linking group; each j independently represents 0 or 1; RP1, RP2, RP3, RP4 and RP6 each independently represents a hydrogen atom or the like; RP5 represents a halogen atom or the like; m is an integer of from 1 to 3, n is an integer of from 0 to 2, and m+n is 2 or 3; and the portion represented by Formula (2): represents a bidentate ligand; wherein Rx and Ry are an atom bonding to the metal atom M, and each independently represents a carbon atom, an oxygen atom or a nitrogen atom.
Abstract:
A highly stable metal complex useful for the manufacture of a light-emitting device has an excellent lifetime property, particularly in a blue region, specifically a metal complex represented by Formula (1): wherein M is a metal atom; each R0 independently represents a divalent linking group; i and j each independently represent 0 or 1; RP1, RP2, RP3, RP4, RP5 and RP6 each independently represent a hydrogen atom and the like, with a proviso that at least one of RP1, RP2, RP3, RP4, RP5 and RP6 is a dendron; m is an integer of from 1 to 3, n is an integer of from 0 to 2, and m+n is 2 or 3; and the portion represented by Formula (2): represents a bidentate ligand; wherein Rx and Ry are an atom bonding to the metal atom M, and each independently represents a carbon atom and the like.
Abstract:
The present invention provides a method for producing a silanol compound capable of efficiently producing a silanol compound. The method for producing a silanol compound includes a proton exchange step of forming a silanol compound having a structure represented by following formula (c) by reacting a silicate having a structure represented by following formula (a) with an acidic compound having an acid dissociation constant pKa of −1 to 20 in dimethyl sulfoxide (DMSO).
(In formula (a), Qi+ represents an i-valent cation and i represents an integer of 1 to 4).
Abstract:
The purpose of the present invention is to provide silanol compounds that can be used as raw materials of siloxane compounds and the like, and a composition of the silanol compounds, as well as to provide a production method that makes it possible to produce silanol compounds at excellent yield. A composition comprising 5 mass % to 100 mass % of a silanol compound represented by Formulas (A) to (C) can be prepared by devising to produce silanol compounds under water-free conditions, to produce silanol compounds in a solvent having the effect of suppressing the condensation of silanol compounds, and to perform other such processes, the composition being able to be used as a raw material or the like of siloxane compounds because the silanol compounds can be stably present in the resulting composition.