# Detailed Mechanisms for the Following Reactions ## Reaction 1 ### Reaction Details: - **Reactant:** A bicyclic compound with a methyl group (CH₃) and methoxy groups (R = OMe). - **Reagent:** NBS (N-Bromosuccinimide, 1 equivalent), (PhCOO)₂ (20 mol%), in CCl₄ solution. - **Conditions:** Reflux for 3 hours. ### Reaction Description: This reaction involves the bromination of a bicyclic compound in the presence of NBS. The NBS serves as a source of bromine radicals, which facilitates the selective bromination of the alkyl chain next to the aromatic ring. ### Product: - **Product Structure:** The bicyclic compound with incorporation of a bromine atom (Br) in place of the methyl hydrogen, leading to a bromomethyl group. ## Reaction 2 ### Reaction Details: - **Reactant:** An azide-containing cyclic ester. - **Reagent/Condition:** - Light (hv), benzene as a solvent. - Nitrogen (N₂) atmosphere for 60% yield. ### Reaction Description: This reaction is a photolytic process that involves the decomposition and rearrangement of the azide-containing compound. The photochemical conditions likely facilitate the formation of a new nitrogen-containing product via a rearrangement mechanism. ### Product: - **Product Structure:** The structure retains the cyclic ester moiety and introduces a new hydroxylamine (N–OH) functional group. ### Summary of Mechanisms 1. **NBS Bromination (Reaction 1):** - Involves the generation of bromine radicals facilitated by NBS and a radical initiator such as (PhCOO)₂. - Radical attack on the methyl group leads to the formation of bromomethyl product. 2. **Photochemical Rearrangement (Reaction 2):** - Light-induced rearrangement of the azide group leading to nitrogen release and formation of a hydroxylamine derivative. - Conducted under an inert nitrogen atmosphere to prevent side reactions. These reactions highlight typical transformations in organic synthesis, focusing on radical mechanisms and photochemistry.

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# Detailed Mechanisms for the Following Reactions

## Reaction 1

### Reaction Details:
- **Reactant:** A bicyclic compound with a methyl group (CH₃) and methoxy groups (R = OMe).
- **Reagent:** NBS (N-Bromosuccinimide, 1 equivalent), (PhCOO)₂ (20 mol%), in CCl₄ solution.
- **Conditions:** Reflux for 3 hours.

### Reaction Description:
This reaction involves the bromination of a bicyclic compound in the presence of NBS. The NBS serves as a source of bromine radicals, which facilitates the selective bromination of the alkyl chain next to the aromatic ring. 

### Product:
- **Product Structure:** The bicyclic compound with incorporation of a bromine atom (Br) in place of the methyl hydrogen, leading to a bromomethyl group.

## Reaction 2

### Reaction Details:
- **Reactant:** An azide-containing cyclic ester.
- **Reagent/Condition:** 
  - Light (hv), benzene as a solvent.
  - Nitrogen (N₂) atmosphere for 60% yield.

### Reaction Description:
This reaction is a photolytic process that involves the decomposition and rearrangement of the azide-containing compound. The photochemical conditions likely facilitate the formation of a new nitrogen-containing product via a rearrangement mechanism.

### Product:
- **Product Structure:** The structure retains the cyclic ester moiety and introduces a new hydroxylamine (N–OH) functional group.

### Summary of Mechanisms
1. **NBS Bromination (Reaction 1):**
   - Involves the generation of bromine radicals facilitated by NBS and a radical initiator such as (PhCOO)₂.
   - Radical attack on the methyl group leads to the formation of bromomethyl product.

2. **Photochemical Rearrangement (Reaction 2):**
   - Light-induced rearrangement of the azide group leading to nitrogen release and formation of a hydroxylamine derivative.
   - Conducted under an inert nitrogen atmosphere to prevent side reactions.

These reactions highlight typical transformations in organic synthesis, focusing on radical mechanisms and photochemistry.
Transcribed Image Text:# Detailed Mechanisms for the Following Reactions ## Reaction 1 ### Reaction Details: - **Reactant:** A bicyclic compound with a methyl group (CH₃) and methoxy groups (R = OMe). - **Reagent:** NBS (N-Bromosuccinimide, 1 equivalent), (PhCOO)₂ (20 mol%), in CCl₄ solution. - **Conditions:** Reflux for 3 hours. ### Reaction Description: This reaction involves the bromination of a bicyclic compound in the presence of NBS. The NBS serves as a source of bromine radicals, which facilitates the selective bromination of the alkyl chain next to the aromatic ring. ### Product: - **Product Structure:** The bicyclic compound with incorporation of a bromine atom (Br) in place of the methyl hydrogen, leading to a bromomethyl group. ## Reaction 2 ### Reaction Details: - **Reactant:** An azide-containing cyclic ester. - **Reagent/Condition:** - Light (hv), benzene as a solvent. - Nitrogen (N₂) atmosphere for 60% yield. ### Reaction Description: This reaction is a photolytic process that involves the decomposition and rearrangement of the azide-containing compound. The photochemical conditions likely facilitate the formation of a new nitrogen-containing product via a rearrangement mechanism. ### Product: - **Product Structure:** The structure retains the cyclic ester moiety and introduces a new hydroxylamine (N–OH) functional group. ### Summary of Mechanisms 1. **NBS Bromination (Reaction 1):** - Involves the generation of bromine radicals facilitated by NBS and a radical initiator such as (PhCOO)₂. - Radical attack on the methyl group leads to the formation of bromomethyl product. 2. **Photochemical Rearrangement (Reaction 2):** - Light-induced rearrangement of the azide group leading to nitrogen release and formation of a hydroxylamine derivative. - Conducted under an inert nitrogen atmosphere to prevent side reactions. These reactions highlight typical transformations in organic synthesis, focusing on radical mechanisms and photochemistry.
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Bromination with NBS.

 

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