Introduction Experiment 3

Introduction Experiment 3 - 1 4-dimetho.6 1.053 138.16...

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Friedel-Crafts Alkylation Reaction Introduction In this experiment, we will be performing the alkylation of an aromatic ring by way of the Friedel-Crafts Reaction. This reaction is an electrophilic aromatic substitution reaction. In this reaction, we will be treating an alcohol with concentrated sulfuric acid to generate a carbocation. Having the methoxy substituents on the ring makes it more reactive than having no substituents. This increased reactivity speeds up reactions; therefore, we will add two more equivalents of our alcohol to encourage disubstitution leading to our product. Reaction Mechanism
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Name Melting Point (ºC) Boiling Point (ºC) Density (g/mL) Molecular Weight Structure
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Unformatted text preview: 1, 4-dimethoxybenzene 57 212.6 1.053 138.16 Acetic acid 16.6 117.9 1.05 60.05 t-butyl alcohol 25.5 82.2 0.79 74.12 Concentrated H 2 SO 4 3.0 280.0 1.84 98.09 Methanol -98 64.6 0.791 32.04 Water 100 1.00 18.02 1, 4-Di-t-butyl-2, 5 – dimethoxybenzene 104-105 N/A N/A 250.37 ethanol-114.1 78.3 0.789 46.07 Safety: Concentrated Sulfuric Acid and Acetic Acid should be handled with care. They are both corrosive and any spills should be washed with copious amounts of water. Glove and goggles should be work at all times. Neutralize any spills with sodium bicarbonate. Methanol and ethanol should be kept away from flames and discarded in the designated containers....
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This note was uploaded on 07/19/2009 for the course CHEM 234-54 taught by Professor Morrison during the Spring '09 term at UGA.

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Introduction Experiment 3 - 1 4-dimetho.6 1.053 138.16...

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