A green and highly efficient method for preparing butylene oxide from butene with small organic molecules

Abstract

The invention discloses a method for preparing butylene oxide from butene with small organic molecules, which is green and highly efficient. The method uses butene as a raw material, adds an organic solvent and a catalyst, uses isobutyraldehyde as a co-reductant, and uses oxygen as a Oxidizing agent, at room temperature, reaction pressure is 0.1~4.5MPa under the condition of making butylene oxide; Described catalyst is selected from ring organic nitrogen oxygen free radical precursor or has following formula (I), (II), ( At least one of the compounds of the structure described in III) or (IV); in the formula, R 1 , R 2 , R 3 independently selected from hydrogen atom, alkyl, cycloalkyl, aryl, heterocycle, hydroxyl, nitro or halogen, or R 2 , R 3 , R 4 At least two loops. The invention has simple process, mild conditions, high yield and selectivity of butylene oxide, and has good industrial application prospect.

Description

A kind of organic small molecule green, efficient catalysis method for butene to prepare butylene oxide technical field The present invention relates to the technical field of industrial catalysis, more specifically, relate to a kind of organic small molecule green, efficient catalysis Method for preparing butylene oxide from alkene. Background technique [0002] Butylene oxide is also known as butylene oxide as a very important organic chemical raw material. is widely used in Synthesis of organic intermediates and polymers. For example, the synthesis of antioxidants, corrosion inhibitors, surfactants, etc. Due to epoxy butyl The alkane is widely used and has high added value, and its synthesis method has received extensive attention from researchers at home and abroad. Epoxy butylene is currently synthesized in industry The methods of alkane mainly include chlorohydrin method and peracetic acid method. [0003] The chlorohydrin method is a traditional process for ...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the above-mentioned prior art requires a higher reaction temperature, and provide a method for the preparation of butylene oxide by small organic molecules with green and high-efficiency catalysis

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