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Y. Miki, Y. Sugimoto, S. Yamadaya, and S. Bachri
[J. Jpn. Inst. Energy, Vol.72, pp.900-905, 1993]
C_{3}-C_{6} alkylphenols of 47 kinds were synthesized. Polymethylphenols were synthesized by transferring methyl groups from tetramethylbenzene to coexisting dimethyl- or trimethylphenols on a silica-alumina or a zeolite catalyst. Diethylphenols were synthesized transferring ethyl groups from diethylbenzene to coexisting ethylphenols on a silica-alumina catalyst. Other phenols were synthesized by allowing the phenols to react with alkyl bromide on aluminium chloride. The position of the alkyl group was determined by superposition of the reaction pathways. The 47 synthesized phenols and 26 commercial phenols were analyzed by GC-FID and GC-MS and their retention indices were calculated. Figure 1 shows the mass chromatograms of m/z 136 and 150 for a mixture of synthesized polymethylphenols.
