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Question 8 Look at the given reaction and use the letter code corresponding to e

ID: 490277 • Letter: Q

Question

Question 8

Look at the given reaction and use the letter code corresponding to each compound in the blank to indicate the expected product(s). If a specific stereoisomer (e.g single enantiomer) is formed, select that isomer only. If a mixture of stereoisomers (e.g. racemic or diastereomers) is formed, select the single structure that shows the appropriate mixture (e.g. lines not dashes).

This reaction will form compound [a1] as the only product. ______________________

KCN, DMF ??? CN MF MF CN C D F CN MF O.QQQ MF CN G CN K MF Cl M O R

Explanation / Answer

Only one isomer : B

This is a SN2 type reaction in which CN- is the nucleophile. It will substitute -Cl. In SN2 type reaction the nucleophile approaches the reaction center from the opposite side from where the -Cl leaves. 100% inversion occurs.

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