After a proton is removed from the OH group, which compound in each pair forms a cyclic ether more rapidly?
c.

Which of the following compounds would react faster in an

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a. E1 reaction?

b. E2 reaction?

What product is obtained when the following compound undergoes two successive elimination reactions?

Given a secondary alkyl bromide reacting with a strong base such as $O_{2}H-$ (ethoxide ion) in ethanol, which mechanism is most likely to occur: $SN1$, $SN2$, $E1$, or $E2$?

Pure (S)-2-bromo-2-fluorobutane reacts with methoxide ion in methanol to give a mixture of (S)-2-fluoro-2-methoxybutane and three fluoroalkenes.

b. Propose a mechanism to show how (S)-2-bromo-2-fluorobutane reacts to give (S)-2-fluoro-2-methoxybutane. Has this reaction gone with retention or inversion of configuration?

Pure (S)-2-bromo-2-fluorobutane reacts with methoxide ion in methanol to give a mixture of (S)-2-fluoro-2-methoxybutane and three fluoroalkenes.

a. Use mechanisms to show which three fluoroalkenes are formed.

Propose mechanisms for the following reactions. Additional products may be formed, but your mechanism only needs to explain the products shown.

(a)

Write a balanced equation for each reaction, showing the major product you expect.

(d)