(a) Write a detailed, electron-pushing mechanism that accounts for the formation of the organic El products. CH3 CI N NaOH CH3 E1 CH3 NaOH acc PT CH3 (b) A lesser-known elimination mechanism is represented here. In this mechanism, the base/nucleophile performs PT in the first step, but the leaving group does not immediately leave, as evidenced by the intermediate. Write a detailed, electron-pushing mechanism to describe this pathway. How does only one (1) organic product forming here compare to the two (2) products formed by El? CH3 CH3 + CH3 + HOH ? + HOH CH3 N CH3

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(a) Write a detailed, electron-pushing mechanism that accounts for the formation of the organic E1 products.

**Diagram:**
- The first structure is a chlorinated pyridine derivative with a methyl group attached.
- Reaction conditions: NaOH.
- Products: Two organic structures—a pyridine derivative with an alkene (CH=CH2) and a pyridine derivative with a longer alkene chain (CH=CH-CH3), plus water (HOH).

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(b) A lesser-known elimination mechanism is represented here. In this mechanism, the base/nucleophile performs proton transfer (PT) in the first step, but the leaving group does not immediately leave, as evidenced by the intermediate. Write a detailed, electron-pushing mechanism to describe this pathway. How does only one (1) organic product form here compare to the two (2) products formed by E1?

**Diagram:**
- Initial compound: A quaternary ammonium pyridine derivative with a chloride ion (Cl-) as the leaving group.
- Reaction conditions: NaOH.
- The intermediate retains the Cl group.
- Final products: A pyridine derivative with a CH=CH-CH3 alkene, HOH, and chloride ion (Cl-).

This educational content provides insights into E1 and less-common elimination mechanisms, highlighting structural changes and intermediate formation.
Transcribed Image Text:(a) Write a detailed, electron-pushing mechanism that accounts for the formation of the organic E1 products. **Diagram:** - The first structure is a chlorinated pyridine derivative with a methyl group attached. - Reaction conditions: NaOH. - Products: Two organic structures—a pyridine derivative with an alkene (CH=CH2) and a pyridine derivative with a longer alkene chain (CH=CH-CH3), plus water (HOH). --- (b) A lesser-known elimination mechanism is represented here. In this mechanism, the base/nucleophile performs proton transfer (PT) in the first step, but the leaving group does not immediately leave, as evidenced by the intermediate. Write a detailed, electron-pushing mechanism to describe this pathway. How does only one (1) organic product form here compare to the two (2) products formed by E1? **Diagram:** - Initial compound: A quaternary ammonium pyridine derivative with a chloride ion (Cl-) as the leaving group. - Reaction conditions: NaOH. - The intermediate retains the Cl group. - Final products: A pyridine derivative with a CH=CH-CH3 alkene, HOH, and chloride ion (Cl-). This educational content provides insights into E1 and less-common elimination mechanisms, highlighting structural changes and intermediate formation.
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