Final Answer:
1. The major organic product is a 6-membered cyclic carbonate with a tertiary amine group.
2. The reaction involves the nucleophilic attack of triethylamine on the carbon atom adjacent to the chloride, forming a cyclic intermediate. This intermediate undergoes intramolecular nucleophilic attack by the oxygen of the carbonate, resulting in the formation of the final product.
3. The final product is a cyclic carbonate with a five-carbon chain and a tertiary amine group, satisfying the reaction conditions.
Step-by-step explanation:
The reaction begins with the nucleophilic attack of triethylamine on the carbon adjacent to the chloride in the starting material, initiating the formation of a cyclic intermediate. This attack is facilitated by the amine acting as a nucleophile, attacking the electrophilic carbon center. The resulting intermediate involves the triethylamine being bonded to the carbon, creating a cyclic structure. In the second step, intramolecular nucleophilic attack occurs, where the oxygen of the carbonate moiety attacks the carbon within the cyclic intermediate.
This intramolecular reaction leads to the closure of the ring, forming a stable cyclic carbonate product. The cyclic carbonate product consists of a six-membered ring, incorporating the original five-carbon chain. Notably, the tertiary amine group is integral to the cyclic structure, having been incorporated through the nucleophilic attack process. This tertiary amine contributes to the overall stability of the product.
The reaction showcases the versatility of organic compounds to undergo complex transformations, forming intricate cyclic structures through carefully orchestrated nucleophilic attacks. Understanding these mechanisms is crucial in organic synthesis, providing insights into the design and manipulation of molecules for desired outcomes.