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- W2024467967 abstract "The decomposition of 4-hydroxy-4-methyl-2-pentanone and the isomerization of 1-butene were carried out over La2O3, Y2O3, and CeO2. The activities for both types of reactions were in the following order; La2O3>Y2O3>CeO2. With La2O3, the change in the activity for the decomposition with the pretreatment temperature of the catalyst correlated well with the change in basicity, the activity and basicity maxima being observed when the catalyst was pretreated at 500 °C. Yttrium sesquioxide showed a maximum activity for the decomposition when pretreated at 700 °C. For the isomerizations of 1-butene and cis-2-butene, La2O3 exhibited activity maxima when pretreated at 700 °C. The cis/trans selectivities from 1-butene were considerably greater than unity, and the trans/1 selectivities from 2-butene were less than unity. The coisomerization of cis-2-butene-d0/d8 revealed that the reaction involved an intramolecular H(or D) transfer. The isotope effects for the formation of 1-butene from cis-2-butene were 4–10, while those for the formation of trans-2-butene were about 1." @default.
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- W2024467967 date "1978-11-01" @default.
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- W2024467967 title "Catalytic Activities of La<sub>2</sub>O<sub>3</sub>, Y<sub>2</sub>O<sub>3</sub>, and CeO<sub>2</sub>for Decomposition of 4-Hydroxy-4-methyl-2-pentanone and Isomerization of Butenes" @default.
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- W2024467967 doi "https://doi.org/10.1246/bcsj.51.3150" @default.
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