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21-04-2020
Chemistry

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This reaction between an enamine and an alkyl halide involves the following steps: 1. The enamine acts as a nucleophile in an SN2 reaction, displacing bromide ion to form addition product 1; 2. Deprotonation yields carbanion 2; 3. Ring closure leads to the final product. Write the mechanism out on a sheet of paper, and then draw the structure of carbanion 2.

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pstnonsonjoku pstnonsonjoku

24-04-2020

Answer:

See explanation

Explanation:

Enamines are nucleophiles, and will react with alkyl halides to give alkylation products. Subsequent treatment with aqueous acid will give ketones.

The mechanism of an enamine reaction is shown in the image attached.

The structure of the carbanion is also shown in the image attached.

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