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Insights into the Reaction Mechanism of the Tetrahydrobenzo[b]pyran by means of Kinetic Studies in the Presence of Fructose as a Green Catalyst

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Figure

Fig. 1: The reaction between 4-methoxybenzaldehyde 1, malononitrile 2 and dimedone 3 in the presence of fructose in a mixture of water and ethanol solvents
Fig. 4: The experimental absorbance curve versus times, in order to find the partial order of
Fig. 5: The spectulative mechanism of the tetrahydrobenzo[b]pyran formation
Fig. 6(A,b): Eyring plots according to equations (16 and 17), for the reaction
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