摘要:
PROBLEM TO BE SOLVED: To provide a method for epoxidating an olefin compound highly productively.SOLUTION: A method for producing an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide includes the following steps repeatedly or continuously. Step (1): reacting a compound having a carbon-carbon double bond and hydrogen peroxide in the coexistence of (a) the compound having a carbon-carbon double bond, (b) the hydrogen peroxide solution, (c) a solid carrier powder, and (d) a solid catalyst powder, or further (e) an organic solvent. Step (2): separating an epoxy compound from the reaction mixture of the step (1). Step (3): adding (d) the solid catalyst powder, and adding (a) the compound having a carbon-carbon double bond and (b) the hydrogen peroxide solution, or further (e) the organic solvent to a powder mixture composed of the solid carrier and the solid catalyst after the reaction product has been separated in the step (2).
摘要:
PROBLEM TO BE SOLVED: To provide a high-purity epoxy compound containing little amount of a residual catalyst. SOLUTION: The production method of the epoxy compound comprises subjecting a compound having a carbon-carbon double bond to an oxidation reaction in the presence of hydrogen peroxide, a quaternary ammonium salt and a heteropolyacid and subsequently removing the quaternary ammonium salt remaining in the reaction mixture by a chemical-activated carbon. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
A process for producing an epoxide such as a cycloaliphatic diepoxide by the reaction of an olefin such as a cycloaliphatic diene with hydrogen peroxide (H2O2) as an oxidant in the presence of a catalytic system under pH control for example at a pH of less than about 5. The present invention is advantageously used for the epoxidation of olefinic compounds such as olefins and aliphatic or aromatic dienes.
摘要翻译:在pH控制下,例如在小于约pH的pH控制下,在催化体系存在下,通过烯烃如脂环族二烯与过氧化氢(H 2 O 2)作为氧化剂的反应来制备环氧化物如环脂族二环氧化物的方法, 本发明有利地用于烯烃化合物如烯烃和脂族或芳族二烯烃的环氧化。
摘要:
PROBLEM TO BE SOLVED: To provide a method for efficiently producing a multivalent glycidyl compound by oxidizing a multivalent allyl compound by the use of an aqueous solution of hydrogen peroxide as an oxidizing agent.SOLUTION: The method includes a step of using a multivalent allyl compound possessing three or more allyl groups as a substrate, a step of interrupting the reaction on the way of the epoxidation reaction and removing water in the reaction liquid, and a step of thereafter conducting the epoxidation reaction again. The hydrolysis of the glycidyl group of the reaction intermediate generated along with the course of the reaction is suppressed by removing water in the reaction liquid on the way of the reaction. Preferably the reaction is conducted in the presence of acetonitrile and alcohol.
摘要:
PROBLEM TO BE SOLVED: To provide a quaternary ammonium salt capable of separating simply and easily a catalyst for oxidation reaction from a product in a reaction solution after reaction, in a method for producing the oxidized product by oxidizing an organic compound with hydrogen peroxide in the presence of the catalyst for the oxidation reaction.SOLUTION: There is disclosed a quaternary ammonium salt expressed by formula (1), wherein R, R, Reach independently represents a hydrocarbon group which may have a substituent; R4 represents a hydrogen atom or a hydrocarbon group which may have a substituent; Xrepresents a counter anion; and n is an integer of 1-20.