Materials Potassium hydroxide 2-Naphthol Ethyl alcohol (absolute) SYNTHESIS OF 2-ETHOXYNAPHTHALENE OH + CH₂CH₂Br + KOH →

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Materials Potassium Hydroxide 2 Naphthol Ethyl Alcohol Absolute Synthesis Of 2 Ethoxynaphthalene Oh Ch Ch Br Koh 1 (54.7 KiB) Viewed 40 times

Materials Potassium hydroxide 2-Naphthol Ethyl alcohol (absolute) SYNTHESIS OF 2-ETHOXYNAPHTHALENE OH + CH₂CH₂Br + KOH → Methyl alcohol Ethyl bromide (Bromoethane) OCH₂CH₂ + H₂O Ethyl ether Magnesium sulfate (anhydrous) QUESTIONS 1. What is the major side product of this reaction? 2. Why is an excess of ethyl bromide used in this reaction? 3. What is the function of the potassium hydroxide in the first step of the reaction? 4. Would sodium hydroxide work as well as potassium hydroxide in this reaction? 5. Why is it important to be sure all of the phenol and base are in solution before mixing them? 6. During the course of the reaction, a white precipitate forms. What is this material? 7. Both the phenol and ethyl alcohol contain OH groups, but only the phenolic OH group reacts to any extent. Why? 8. If you wanted to adapt this procedure to prepare the analogous propoxy compound, how much propyl iodide would you have to use to carry out the reaction on the same scale?