Practice mode Alkyl Halides

Which conditions favour elimination rather than substitution when an alkyl halide reacts with KOH?

Correct answer A. Concentrated alcoholic KOH and a high temperature

Explanation

An ethanolic solvent, a concentrated strong base and heating favour removal of a β-hydrogen and the halide, forming an alkene. Aqueous, dilute and cooler conditions favour substitution to give an alcohol.

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Which conditions favour elimination rather than substitution when an alkyl halide reacts with KOH?

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Which conditions favour elimination rather than substitution when an alkyl halide reacts with KOH?

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