Answer the following questions about the four reactions shown below: 2 i. 3 mech: Br mech: BT2 CH₂OH HOL mech: mech: H₂SO4 A HBr Write the proper mechanism (SN2, SN1, E2, E1, 8A, 8B, 8C) of each reaction under the respective arrow.

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Chapter1: Chemical Foundations
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**Assessment of Reaction Mechanisms**

**Answer the following questions about the four reactions shown below:**

1. Reaction 1:
   \[ \text{ }
   \]
   \[ \text{CH\textsubscript{2}=C(CH\textsubscript{3})-CH\textsubscript{3}} + Br\textsubscript{2} \rightarrow \]  
   
   \[ \text{mech:______}\]

2. Reaction 2:
   \[ \text{ HO-CH\textsubscript{2}-CH\textsubscript{2}-CH\textsubscript{3}} + H\textsubscript{2}SO\textsubscript{4} \rightarrow \]
   \[ \text{mech:______}\]

3. Reaction 3:
   \[ \text{ }\]
   \[ \text{Br-CH\textsubscript{2}-C(CH\textsubscript{3})-CH\textsubscript{3}} + CH\textsubscript{3}OH \rightarrow \]
   \[ \text{mech:______}\]

4. Reaction 4:
   \[ \text{ }\]
   \[ \text{CH\textsubscript{2}=CH-CH=CH\textsubscript{2}} + HBr \rightarrow \]
   \[ \text{mech:______}\]

**Questions:**

**i.** Write the proper mechanism (S\textsubscript{N2}, S\textsubscript{N1}, E2, E1, 8A, 8B, 8C) of each reaction under the respective arrow.

**ii.** Three of these reactions proceed using the same intermediate. Draw the structure of that intermediate.

**iii.** Which of the four reactions does NOT proceed through the same intermediate as the others?
Transcribed Image Text:**Assessment of Reaction Mechanisms** **Answer the following questions about the four reactions shown below:** 1. Reaction 1: \[ \text{ } \] \[ \text{CH\textsubscript{2}=C(CH\textsubscript{3})-CH\textsubscript{3}} + Br\textsubscript{2} \rightarrow \] \[ \text{mech:______}\] 2. Reaction 2: \[ \text{ HO-CH\textsubscript{2}-CH\textsubscript{2}-CH\textsubscript{3}} + H\textsubscript{2}SO\textsubscript{4} \rightarrow \] \[ \text{mech:______}\] 3. Reaction 3: \[ \text{ }\] \[ \text{Br-CH\textsubscript{2}-C(CH\textsubscript{3})-CH\textsubscript{3}} + CH\textsubscript{3}OH \rightarrow \] \[ \text{mech:______}\] 4. Reaction 4: \[ \text{ }\] \[ \text{CH\textsubscript{2}=CH-CH=CH\textsubscript{2}} + HBr \rightarrow \] \[ \text{mech:______}\] **Questions:** **i.** Write the proper mechanism (S\textsubscript{N2}, S\textsubscript{N1}, E2, E1, 8A, 8B, 8C) of each reaction under the respective arrow. **ii.** Three of these reactions proceed using the same intermediate. Draw the structure of that intermediate. **iii.** Which of the four reactions does NOT proceed through the same intermediate as the others?
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Which of the four reactions does NOT proceed through the same intermediate as the others? 

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Three of these reactions proceed using the same intermediate. Draw the structure of that intermediate. 

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