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Mechanism of Catalytic Alkylation of 2,6-di-tert-Butylphenol by Methyl Acrylate

Alexander Volod´kin and Gennady Zaikov
N. M. Emanuel Institute of Biochemical Physics Russian Academy of Sciences 4, Kosygin str., 119334 Moscow, Russia;
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The determining factor of the reaction of 2,6-di-tert-butylphenol with alkaline metal hydroxides is temperature, depending on which two types of potassium or sodium 2,6-di-tert-butyl phenoxides are formed with different catalytic activity in the alkylation of 2,6-di-tert-butylphenol with methyl acrylate. More active forms of 2,6-But2C6H3OK or 2,6-But2C6H3ONa are synthesized at temperatures higher than 433 K and represent predominantly monomers of 2,6-di-tert-butyl phenoxides producing dimers on cooling.

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