Abstract: The present invention can provide a process for producing a hydroxy adamantane carboxylic acid compound represented by the above formula (2), which comprises (i) reacting an adamantane compound represented by the above formula (1) with carbon monoxide or with a carbon monoxide source in a proton acid solution prepared at a concentration of 90% by mass or more to thereby cause carboxylation of the OX group(s), and then (ii) adding an oxidizing agent to the reaction mixture to cause oxidation of the bridgehead C—H bond to thereby generate a hydroxyl group.

Abstract: Provided according to the present invention are an adamantyl (meth)acrylate represented by formula (1), having a formazin standard turbidity of less than 1.7 NTU (Nephelometric Turbidity Unit) in methylethylketone or tetrahydrofuran, and also a (meth)acrylic copolymer comprising the adamantyl (meth)acrylate as a repeating unit: (in the formula, R1 represents hydrogen or a methyl group; R2 through R4 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group having a carbon number of 1 to 3, an aryl group, an alkoxy group, an aryloxy group, a halogen group, an alkyl halide group, or a hydroxyalkyl group; and n1 represents 0 or 1).

Abstract: Provided according to the present invention are an adamantyl (meth)acrylate represented by formula (1), having a formazin standard turbidity of less than 1.7 NTU (Nephelometric Turbidity Unit) in methylethylketone or tetrahydrofuran, and also a (meth)acrylic copolymer comprising the adamantyl (meth)acrylate as a repeating unit: (in the formula, R1 represents hydrogen or a methyl group; R2 through R4 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group having a carbon number of 1 to 3, an aryl group, an alkoxy group, an aryloxy group, a halogen group, an alkyl halide group, or a hydroxyalkyl group; and n1 represents 0 or 1).

Abstract: The present invention provides an efficient production method suitable to industrial-scale production not requiring column purification for adamantyl (meth)acrylates having an adamantine skeleton having utility in crosslinked resins, optical fibers, optical waveguides, optical disc substrates and other optical materials.

Abstract: The present invention provides an efficient production method suitable to industrial-scale production not requiring column purification for adamantyl (meth)acrylates having an adamantane skeleton and useful as monomers for use for resins excellent in optical properties, etc.

Abstract: The adamantane derivatives of the present invention which are represented by the general formula (1): wherein X is a hydrogen atom, alkyl, halogen-containing alkyl, halogen, or hydroxyl-, halogen-, nitrile- or ether-containing hydrocarbyl, and a plurality of X groups, if any, may be the same or different from each other; n1 is an integer of 1 to 14; R1 to R4 may be the same or different from each other and are independently alkyl or halogen-containing alkyl; and Y1 and Y2 may be the same or different from each other and are independently a hydrogen atom or a group represented by the general formula (2): wherein R5 to R7 may be the same or different from each other and are independently a hydrogen atom, alkyl, halogen or halogen-containing alkyl, are excellent in optical properties, heat resistance and acid-dissociating property, and useful as crosslinking-type resins, optical materials such as optical fibers, light wave guides, optical disk substrates and photoresists as well as raw materials thereof

Abstract: In the present invention, an adamantyl acrylate compound is produced by a process comprising a first step and a second step without using acid halide. In the first step, a 2-adamantanone compound is reacted with a hydrocarbyl halide in the presence of lithium metal to form an adamantanolate intermediate that is then reacted with an acrylic ester compound in the second step to produce the aimed adamantyl acrylate compound.

Abstract: The adamantane derivatives of the present invention which are represented by the general formula (1): wherein X is a hydrogen atom, alkyl, halogen-containing alkyl, halogen, or hydroxyl-, halogen-, nitrile- or ether-containing hydrocarbyl, and a plurality of X groups, if any, may be the same or different from each other; n1 is an integer of 1 to 14; R1 to R4 may be the same or different from each other and are independently alkyl or halogen-containing alkyl; and Y1 and Y2 may be the same or different from each other and are independently a hydrogen atom or a group represented by the general formula (2): wherein R5 to R7 may be the same or different from each other and are independently a hydrogen atom, alkyl, halogen or halogen-containing alkyl, are excellent in optical properties, heat resistance and acid-dissociating property, and useful as crosslinking-type resins, optical materials such as optical fibers, light wave guides, optical disk substrates and photoresists as well as raw materials thereof

Abstract: In the present invention, an adamantyl acrylate compound is produced by a process comprising a first step and a second step without using acid halide. In the first step, a 2-adamantanone compound is reacted with a hydrocarbyl halide in the presence of lithium metal to form an adamantanolate intermediate that is then reacted with an acrylic ester compound in the second step to produce the aimed adamantyl acrylate compound.

Abstract: Adamantanediols are produced by the hydroxylation of adamantane compounds in a water/organic solvent two-phase system in the presence of a ruthenium compound and a hypochlorite. Throughout the hydroxylation, the hypochlorite concentration in the water phase is regulated within a narrow limited range, for example, by monitoring the pH of the reaction system. With such a control of the hypochlorite concentration, the adamantanediols are produced in a high selectivity and a high yield.

Abstract: A 2-hydrocarbyl-2-adamantyl acrylate compound represented by the following Formula 6: is produced easily and stably with high yields by reacting a 2-adamantanone compound represented by the following Formula 1: with at least one organometallic compound represented by the following Formula 2 or 3: R1MgX  (2) R1Li  (3) and at least one acrylic compound represented by the following Formula 4 or 5: wherein, R1, R2, R3, X, Y and n in the above formulae being as defined in the disclosure.

Abstract: A 2-hydrocarbyl-2-adamantyl acrylate compound represented by the following Formula 6: 1

Abstract: Adamantanediols are produced by the hydroxylation of adamantane compounds in a water/organic solvent two-phase system in the presence of a ruthenium compound and a hypochlorite. Throughout the hydroxylation, the hypochlorite concentration in the water phase is regulated within a narrow limited range, for example, by monitoring the pH of the reaction system. With such a control of the hypochlorite concentration, the adamantanediols are produced in a high selectivity and a high yield.