Exercise 8-2 Identify the electrophile and the nucleophile in each of the following reactions: a. CH3I+O⊖CH3→CH3−O−CH3+I⊖ b. CH2=CH2+Br2→C⊕H2−CH2−Br+Br⊖ c. CH3NH2+CH3I→(CH3)2NH+HI
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CH3I + O⊖CH3 → CH3−O−CH3 + I⊖ In this reaction, the electrophile is CH3I (methyl iodide) because it has a polar bond between the carbon and iodine, making the carbon slightly positive and susceptible to attack by a nucleophile. The nucleophile is O⊖CH3 (methoxide Show more…
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3. Perform the following tasks for each reaction a-c shown below. i. Label the electrophile and nucleophile. Circle the leaving group if there is one. Is the nucleophile strong or weak? What type of electrophile (methyl, 1°, 2°, or 3°) is present? ii. Determine if the reagents result in an SN1, an SN2, or No Reaction. Draw the major organic product(s) (all isomers if relevant) for the reaction; write NA if no reaction. iii. What structural features or qualities of your starting materials helped you decide which mechanism takes place in each reaction?
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Complete the following acid-base reactions. Designate the nucleophile and the electrophile in each reaction. Use curved arrows to show the product formation. Include nonbonding electrons and appropriate charges if needed.
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Identify the nucleophile, electrophile, and leaving group in each of the following substitution reactions. Predict whether equilibrium favors the reactants or products: $$\begin{aligned} &\text { (a) } \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{ONa}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{I} \rightleftharpoons\\ &&\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OCH}_{2} \mathrm{CH}_{3}+\mathrm{NaI} \end{aligned}$$ $$\begin{aligned} &\text { (b) } \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NH}_{3}^{+}+\mathrm{KI} \rightleftharpoons\\ &&\mathrm{NH}_{3}+\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{I}+\mathrm{K}^{+} \end{aligned}$$
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