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Experiment 6 Lab Report - Mark DeWitt 35651743 Chemistry...

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Mark DeWitt 35651743 Chemistry 216 Section 128 Experiment 6: Benzilic Acid Rearrangement and Preparation of Dilantin Introduction The purpose of this experiment was to synthesize Dilantin from benzil and urea and to convert benzil to benzilic acid. Once the Dilantin was produced, the reaction progress needed to be confirmed through TLC and IR analyses. A percent yield for Dilantin was also determined. Reaction Results These are the steps that I performed for the experiment: 1. Placed 101 mg of benzil, 51 mg of urea, and 2 mL of 5% NaOH in ethanol in a 5 mL reaction vial with a stirring vane. 2. Attached a condenser and let the mixture heat under reflux for 2 hours. 3. Let the mixture cool. 4. Diluted the solution with 2-3 mL of H 2 O. 5. Removed soluble precipitate through gravity filtration. 6. Acidified the filtrate with HCl.
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7. Collected Dilantin through suction filtration. 8. Weighed Dilantin. 9. Performed TLC analysis. 10. Produced an IR spectrum.
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