摘要:
PROBLEM TO BE SOLVED: To provide a method of producing an epoxy compound according to an oxidation method employing hydrogen peroxide, capable of: preventing the generation of oxygen resulting from the decomposition of hydrogen peroxide in the reaction system; eliminating a complicated aftertreatment; exhibiting excellent reactivity; and carrying out the reaction in a SUS container.SOLUTION: The method of producing an epoxy compound is characterized by allowing an olefin compound and hydrogen peroxide to react with each other in the presence of a nitrile compound and a silicate.
摘要:
PROBLEM TO BE SOLVED: To provide a new method for producing a diepoxy compound having a mesogen skeleton containing an ester bond in a high yield. SOLUTION: The method comprises a step of mixing and reacting a compound such as 1,4-phenylene-bis(4-hydroxybenzoate) with a compound represented by formula (2) (wherein, X 1 represents a halogen atom) in the presence of an ammonium halide salt, an inorganic base and an aliphatic alcohol for producing the diepoxy compound represented by formula (3) (wherein R 1 represents a hydrogen atom, a 1-3C alkyl group or a 1-3C alkoxy group; R 2 represents a hydrogen atom, a 1-3C alkyl group or a 1-3C alkoxy group; R 3 represents a hydrogen atom, a 1-3C alkyl group or a 1-3C alkoxy group; R 4 represents a hydrogen atom, a 1-3C alkyl group or a 1-3C alkoxy group; R 5 represents a hydrogen atom, a methyl group or a 1-3C alkoxy group; R 6 represents a hydrogen atom, a methyl group or a 1-3C alkoxy group; R 7 represents a hydrogen atom, a methyl group or a 1-3C alkoxy group; and R 8 represents a hydrogen atom, a methyl group or a 1-3C alkoxy group). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译:要解决的问题:提供一种以高产率制备具有含有酯键的介晶骨架的二环氧化合物的新方法。 解决方案:该方法包括将化合物如1,4-亚苯基 - 双(4-羟基苯甲酸酯)与式(2)表示的化合物(其中,X 1 SP (3)表示的二环氧化合物(式中,R表示卤素原子)在卤化铵盐,无机碱和脂族醇的存在下反应,式中,R 1表示氢原子, 1-3C烷基或1-3C烷氧基; R“SP”2表示氢原子,1-3C烷基或1-3C烷氧基; R“SP”3 SP> 表示氢原子,1-3C烷基或1-3C烷氧基; R SP 4表示氢原子,1-3C烷基或1-3C烷氧基; R 5 SP>表示氢原子,甲基或1-3C烷氧基; R SP6表示氢原子,甲基或1-3C烷氧基; R 7 SP>表示氢原子,甲基或1-3C烷氧基; R SP 8表示氢原子,甲基或1-3C a 烷氧基)。 版权所有(C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a diepoxy compound having an ester bond and a mesogenic skeleton, with excellent solubility in an organic solvent, especially in methyl isobutyl ketone widely used for a composition for preparation of a laminated board. SOLUTION: The diepoxy compound is represented by formula (1), wherein R 1 to R 4 are each independently a hydrogen atom or a 1-3C alkyl group. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
The preparation of epoxy resin compositions which comprise glycidyl ethers comprising cyclohexyl groups and have a low oligomer content is carried out by distillation of compositions which are obtainable by ring hydrogenation of compounds of the general formula (I) where —X— is —CR2—, —CO—, —O, —S—, —SO2—, the radicals R are each, independently of one another, H, C1-6-alkyl, C3-6-cycloalkyl, in which one or more H atoms can be replaced by halogen, the radicals R′ are each, independently of one another, C1-4-alkyl, halogen, the indices n are each, independently of one another, 0, 1, 2 or 3, and subsequent reaction of the hydroxyl groups with epichlorohydrin, in thin film evaporators or short path evaporators at a temperature in the range from 150 to 270° C. and a pressure in the range from 0.001 to 1 mbar.