13410-58-7Relevant academic research and scientific papers
Selective hydrogenation of aromatic compounds containing epoxy group over Rh/graphite
Hara, Yoshinori,Inagaki, Hiroko
, p. 1116 - 1117 (2002)
Catalytic hydrogenation of aromatic compounds containing epoxy group to alicylic compounds has been investigated. Rh supported on graphite with high surface area exhibited superior performance to other supported catalysts for the selective reduction of the aromatic group while retaining epoxy group.
Preparation method of 2,2'-bis(4-hydroxycyclohexyl)propane glycidyl ether
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Paragraph 0049-0068, (2021/04/29)
The invention discloses a preparation method of 2,2'-bis(4-hydroxycyclohexyl)propane glycidyl ether. The preparation method comprises the steps of raw material pretreatment, ring-opening addition etherification, ring-closing epoxidation and product post-treatment. In the etherification reaction, a gradient temperature reaction is adopted, the reaction temperature is reduced in the later period of etherification, and the reaction is continued, so that the yield of the product is increased, and meanwhile, the color of the product can be effectively reduced through later-stage low-temperature reaction. According to the method, the steps of normal-pressure solvent removal and filtration are added in post-treatment and after water washing, and the inventor finds that after the steps are carried out, the content of inorganic chlorine can be greatly reduced, and the recovery treatment of the solvent is added in the process, so that the solvent can be recycled, and the production cost is greatly reduced. In a word, the HBPA glycidyl ether synthesized by the scheme is stable in product quality index, simple to operate, high in product yield, low in production cost and suitable for industrial production.
Process for the preparation of glycidyl ethers
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, (2008/06/13)
An improved process for the preparation of glycidyl ethers of formula I STR1 wherein Q is an aliphatic, cycloaliphatic or araliphatic radical of a valency m, R is --H or --CH3, and m is an integer from 1 to 10, by reacting an alcohol of formula Q--(OH)m with m mol of an epihalohydrin of formula II STR2 in the presence of a catalyst to the corresponding halohydrin ether, and dehydrohalogenating said halohydrin ether with an alkali metal hydroxide to give a compound of formula I, wherein Q, m and R are as defined above and Hal is halogen, which process comprises using as catalyst a) tin difluoride or b) a divalent tin halide in conjunction with a co-catalyst.
