chem lab report 6.docx - Experiment 20 Reaction of...

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Experiment 20: Reaction of Iodoethane with Sodium Saccharin, an Ambident Nucleophile Introduction: The Purpose of this experiment was to find out if alkylation would occur mainly on the nitrogen atom of saccharin. Substitution reactions are chemical reactions where a leaving group leaves the molecule and then a nucleophile attacks an electrophile. Observations and Data: The students weighed out close to 10.0 mmol of sodium saccharin and 5.0 mL of N, N dimethylformamide (DMF) in a 125 mL Erlenmeyer flask. In this experiment 2.075 g of sodium saccharin and 5.2 mL of DMF were used. The mixture was heated in a hot water bath with stirring until the solid dissolved and then 0.80 mL of iodoethane was added. The mouth of the flask was covered with parafilm and the mixture was heated in the water bath for 10 minutes. Then the mixture was cooled to room temperature, 40 mL of water were added, and the flask was shaken until the liquid residue that formed had solidified. The flask was cooled in an ice water bath and the solid was broken up with a
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