7175-96-4Relevant academic research and scientific papers
Preparation method of 2,6-ditert-butyl phenol salt
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Paragraph 0013-0015; 0018-0019; 0021-0022, (2018/04/01)
The invention provides a preparation method of 2,6-ditert-butyl phenol salt. The preparation method comprises the following steps: carrying out reflux dehydration reaction on 2,6-ditert-butyl phenol and an alkali metal compound in a molar ratio of (1 to 1)-(1 to 1.4) in a benzene solvent under the protection of inert gas; and after the reaction is finished, cooling and filtering under the protection of inert gas, and carrying out vacuum drying, so as to obtain an off-white solid product, namely the 2,6-ditert-butyl phenol salt. According to the preparation method, by carrying out reflux dehydration by virtue of the benzene solvent, the reaction process is accelerated, the reaction time is shortened, and the synthetic efficiency of the 2,6-ditert-butyl phenol salt is improved; the benzene solvent is capable of taking away unreacted raw materials and generated impurities in a post-treatment filtration process, so that the product purity is increased; the prepared 2,6-ditert-butyl phenol salt is an off-white product, high in quality and wide in use range; and the protection of inert gas is implemented in the reaction process and the post-treatment process, so that air can be effectively isolated, the production of byproducts is reduced, and the yield of the 2,6-ditert-butyl phenol salt is increased.
Formation and properties of a catalyst based on sodium and potassium hydroxides in the reaction of 2,6-di-tert-butylphenol with methyl acrylate
Volod'kin,Zaikov
, p. 2189 - 2195 (2007/10/03)
The nature of the cation (K+ or Na+) in hydroxides affects the temperature plot of the equilibrium constant of the reaction of KOH and NaOH with 2,6-di-tert-butylphenol (ArOH) and the conversion of KOH and (or) NaOH to potassium or sodium 2,6-di-tert-butyl phenoxides, which are catalysts for the alkylation of ArOH by methyl acrylate. The kinetic method for determination of the composition of the catalyst formed from NaOH and ArOH was proposed. The nature of the cation in phenoxides ArOK or ArONa is a factor determining the kinetics of the reaction of ArOH with methyl acrylate. Two different kinetic schemes were proposed to describe the transformation of ArOH in the presence of ArONa or ArOK.
