PUBLISHED PAPERS #11.03
| Chingiz Rasulov, Gunay Heydarli, Mehriban Nagiyeva, Ulviyye Gurbanova. Synthesis of Para-(1-Methylcycloalkyl) Phenols and Their Carbonyl Derivatives |
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| Abstract. The study explores the cycloalkylation of phenol with 1-methylcyclopentene and 1-methylcyclohexene using a zeolite-based KH-30 catalyst. Key parameters such as reaction tem-perature, molar ratio of reagents, and space velocity were evaluated to determine their impact on product yield and selectivity. The optimal conditions were established at 120°C, with a 1:1 molar ratio of phenol to methylcycloalkenes and a space velocity of 0.6 h⁻¹. Under these parameters, the yield of p-(1-methylcyclohexyl)phenol reached 73.8% based on the used phenol, with a selectivity of 92.1%. The product yield was 71.3%, and the selectivity for 1-methylcyclopentene was 89.7%. The findings confirm that the cycloalkylation of phe-nol with methylcycloalkenes, catalyzed by KH-30, is a highly effective route for synthesizing p-(1-methylcycloalkyl)phenols, offering both high selectivity and significant product yield. The acylation reactions of synthe-sized para-cyclohexylphenols with acetyl chloride were inves-tigated, and optimal conditions for the process were investi-gated. New application areas for synthesized acetophenones were identified. |
| Keywords: phenol, 1-methylcyclohexene, 1-methylcyclopentene, alkylation, catalyst, para-cycloalkylphenol, acylation, acetophenone |
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| DOI: https://doi.org/10.30546/MaCoSEP2025.1010 |