Q.25  Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.

Answers (1)
H Harsh Kankaria

Williamson synthesis involves S_N2 attack by alkoxide ion on a primary alkyl halide. But if secondary or tertiary alkyl halides are taken then alkenes would be produced because elimination would take place. This is because alkoxides are nucleophiles as well as strong bases.