1. 2. OH 1. "CI 2. CH3 a Proton transfer b = Lewis acid/base c = Electrophilic addition 1. BBr3 heat 2. H₂O NaOH CH₂Br B(OH)3 NaCl d = E1 Elimination e = E2 Elimination The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a-g for your answers. f = SN1 Nucleophilic substitution g= SN2 Nucleophilic substitution

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### Reaction Mechanisms of Alcohols and Ethers

#### Reactions:
1. **Reaction 1**:
   - Starting Material: Contains a benzene ring with a methyl group (CH₃).
   - Reagents: 1. BBr₃, heat 2. H₂O
   - Products: A phenol (benzene ring with an OH group), CH₃Br, and B(OH)₃.

2. **Reaction 2**:
   - Starting Material: Cyclohexanol with a chlorine group, reacting with NaOH.
   - Product: The OH group forms part of a cyclic ether, and NaCl is produced.

#### Mechanisms:

- **a** = Proton transfer
- **b** = Lewis acid/base
- **c** = Electrophilic addition
- **d** = E1 Elimination
- **e** = E2 Elimination
- **f** = S_N1 Nucleophilic substitution
- **g** = S_N2 Nucleophilic substitution

#### Instructions:
The reactions above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters **a - g** for your answers.

1. [ ]
2. [ ]
Transcribed Image Text:### Reaction Mechanisms of Alcohols and Ethers #### Reactions: 1. **Reaction 1**: - Starting Material: Contains a benzene ring with a methyl group (CH₃). - Reagents: 1. BBr₃, heat 2. H₂O - Products: A phenol (benzene ring with an OH group), CH₃Br, and B(OH)₃. 2. **Reaction 2**: - Starting Material: Cyclohexanol with a chlorine group, reacting with NaOH. - Product: The OH group forms part of a cyclic ether, and NaCl is produced. #### Mechanisms: - **a** = Proton transfer - **b** = Lewis acid/base - **c** = Electrophilic addition - **d** = E1 Elimination - **e** = E2 Elimination - **f** = S_N1 Nucleophilic substitution - **g** = S_N2 Nucleophilic substitution #### Instructions: The reactions above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters **a - g** for your answers. 1. [ ] 2. [ ]
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