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- W1977631437 abstract "Some heterogeneous catalysts, cupric oxide supported on different supports, were prepared and employed to catalyze the cyclopropanation of styrene and 2,5-dimethyl-2,4-hexadiene with ethyl diazoacetate (EDA). The catalytic performance for cyclopropanation strongly depends on the nature of the support. A novel catalyst, CuO/TiO2-Al2O3, in which Al2O3 is modified with a monolayer TiO2, is found to be most active and selective for the cyclopropanation reaction. The yields of 93 and 94% cyclopropanes are obtained for styrene and 2,5-dimethyl-2,4-hexadiene at 40 °C as the substrates, respectively. The activity and selectivity in cyclopropanes are optimized with a monolayer dispersion of cupric oxide on the corresponding supports." @default.
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- W1977631437 date "2003-01-01" @default.
- W1977631437 modified "2023-09-26" @default.
- W1977631437 title "Cyclopropanation on a highly active heterogeneous catalyst: CuO/TiO2-Al2O3" @default.
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- W1977631437 doi "https://doi.org/10.1016/s0926-860x(02)00393-9" @default.
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