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Two non-metallic ketone catalysts resulted from fructose were first applied in the epoxidation of styrene with dry air to achieve considerably encouraging results, in which no any transition metal ion/oxide was involved. Ketone 1 was highly active, with the styrene conversion of 78.1 mol% and the epoxide selectivity of 92.0% at 363 K in 5 h. The poorer activity of ketone 2 was possibly associated...
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