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Abstract <p>The activity of a series of catalysts—specifically, a mesoporous zirconium oxide stabilized with silica (m-ZrO<sub>2</sub>–SiO<sub>2</sub>) and aluminum-modified mesoporous silicate (Al-MCM-41) with varying aluminum loadings—was evaluated in the alkylation of phenol with cyclohexene and cyclohexanol. Among the catalysts under study, the Al-MCM-41 sample with the lowest Si/Al molar ratio (10) exhibited the highest activity for the formation of C-alkylates. Using alcohols of different structures (isopropanol, <i>tert</i>-butanol, <i>tert</i>-pentanol, cyclopentanol, cyclohexanol, benzyl alcohol, and methoxybenzyl alcohol), it was shown that the nature of the alkylating agent affects both product distribution and regioselectivity (Al-MCM-41(10), 200°C, 2 MPa N<sub>2</sub>).</p>

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Phenol Alkylation with Cyclohexene and Alcohols (Aliphatic, Alicyclic, and Benzyl) over Al-MCM-41 and m-ZrO2–SiO2 Mesoporous Materials

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • Ekaterina A. Roldugina,
  • Stanislav A. Fedorov,
  • Anton L. Maximov

摘要

Abstract

The activity of a series of catalysts—specifically, a mesoporous zirconium oxide stabilized with silica (m-ZrO2–SiO2) and aluminum-modified mesoporous silicate (Al-MCM-41) with varying aluminum loadings—was evaluated in the alkylation of phenol with cyclohexene and cyclohexanol. Among the catalysts under study, the Al-MCM-41 sample with the lowest Si/Al molar ratio (10) exhibited the highest activity for the formation of C-alkylates. Using alcohols of different structures (isopropanol, tert-butanol, tert-pentanol, cyclopentanol, cyclohexanol, benzyl alcohol, and methoxybenzyl alcohol), it was shown that the nature of the alkylating agent affects both product distribution and regioselectivity (Al-MCM-41(10), 200°C, 2 MPa N2).