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9.41 Rank the following bases in order from slowest E2 reaction rate to fastest.

ID: 695569 • Letter: 9

Question

9.41 Rank the following bases in order from slowest E2 reaction rate to fastest. 0 H20 ONa 9.42 Rank the following substrates in order from slowest S 1 reaction rate to fastest. Br 9.43 Suggest an alkyl bromide that can be treated with CH,SNa to form each of the following products exclusively By mechanism should the respective reactions proceed? CH,SNa H,C CH SNa R-Br R-Br 9.44 Both of the following reactions will give the same S,2 product CH)CHONa (CH) CHBr H,C-C H,C--ONa Draw the mechanism for each of these reactions and show the product. Which reaction is more efficient?

Explanation / Answer

Question 9.41

The strong base will always have the high E2 reaction rate, here NaOH is the strongest base therfore it will have highest E2 reaction rate and C6H5ONa since is stabilised by resonance will act as weak base therefore it will have lowest E2 reaction rate

Order from slowest to highest E2 reaction rate

C<A<F<B<E<D