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Gas phase unimolecular elimination of some ortho-substituted β-phenylethyl acetates

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Abstract

The rates of the gas phase elimination of o-methyl and o-methoxy from β-phenylethyl acetates were studied in a static system over the temperature range 360.0–410.1°C and pressure range 39–177 Torr. The reactions in seasoned vessels and in the presence of cyclohexene inhibitor, are firstorder, homogeneous and unimolecular to give acetic acid and the corresponding o-substituted styrene. The effect of several substituents at the orthoposition of the benzene ring in β-phenylethyl acetate is discussed in terms of electronic and steric factors.

Abstract

Нзучена скорость газофазной элиминации о-метил и о-метокси групп из β-фенилзтил ацетата в статической системе при 360–410, 7°С и 39–177 торр. В обработанных сосудах и в присутствии циклогексеиа как ингибитора, реакции имеют первый порядок и являются гомогенными, мономолекулярными проуессами, приводящими к образованию уксусной кислоты и о-замещенного стирола. Обсужафется эффект различных о-заместителей β-фенилетил ацетата на основе электронных и стерических факторов.

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Chuchani, G., Rotinov, A., Caraballo, D.F. et al. Gas phase unimolecular elimination of some ortho-substituted β-phenylethyl acetates. React Kinet Catal Lett 13, 173–177 (1980). https://doi.org/10.1007/BF02074191

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  • DOI: https://doi.org/10.1007/BF02074191

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