CH3 j) NaCN acetone "Br

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Please solve parts j,k and l.

Predict the mechanism(s) (SN1, SN2, E1, E2) and major product(s) for each reaction.

### Reaction Schemes for Organic Chemistry

#### j)
- **Structure**: A cyclohexane ring with a methyl group (CH₃) and a bromine atom (Br) attached. The methyl group is denoted with a solid wedge (indicating it is coming out of the plane), while the bromine atom is denoted with a dashed wedge (indicating it is going into the plane).
- **Reagents**: Sodium cyanide (NaCN) in acetone.
- **Process**: This indicates a nucleophilic substitution reaction where the bromine atom might be replaced by the cyanide group (CN⁻).

#### k)
- **Structure**: A linear chain with a bromine atom (Br) and a hydrogen atom (H) attached to a central carbon. The bromine uses a solid wedge, and the hydrogen uses a dashed wedge to indicate stereochemistry.
- **Reagents**: Sodium methoxide (NaOCH₃) in acetone.
- **Process**: Likely an elimination reaction, where the base (NaOCH₃) facilitates removal of the hydrogen and bromine, potentially forming a double bond.

#### l)
- **Structure**: A cyclopentane ring with a methyl group (CH₃) and a bromine atom (Br) attached. The methyl group is coming out of the plane (solid wedge), and the bromine atom is going into the plane (dashed wedge).
- **Reagents**: Ethanol (CH₃CH₂OH) with heat.
- **Process**: This suggests an elimination reaction involving heat, which may result in the formation of an alkene by removing the bromine and a hydrogen atom.
Transcribed Image Text:### Reaction Schemes for Organic Chemistry #### j) - **Structure**: A cyclohexane ring with a methyl group (CH₃) and a bromine atom (Br) attached. The methyl group is denoted with a solid wedge (indicating it is coming out of the plane), while the bromine atom is denoted with a dashed wedge (indicating it is going into the plane). - **Reagents**: Sodium cyanide (NaCN) in acetone. - **Process**: This indicates a nucleophilic substitution reaction where the bromine atom might be replaced by the cyanide group (CN⁻). #### k) - **Structure**: A linear chain with a bromine atom (Br) and a hydrogen atom (H) attached to a central carbon. The bromine uses a solid wedge, and the hydrogen uses a dashed wedge to indicate stereochemistry. - **Reagents**: Sodium methoxide (NaOCH₃) in acetone. - **Process**: Likely an elimination reaction, where the base (NaOCH₃) facilitates removal of the hydrogen and bromine, potentially forming a double bond. #### l) - **Structure**: A cyclopentane ring with a methyl group (CH₃) and a bromine atom (Br) attached. The methyl group is coming out of the plane (solid wedge), and the bromine atom is going into the plane (dashed wedge). - **Reagents**: Ethanol (CH₃CH₂OH) with heat. - **Process**: This suggests an elimination reaction involving heat, which may result in the formation of an alkene by removing the bromine and a hydrogen atom.
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