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Related Reactions
Buchwald-Hartwig Coupling
Chan-Lam Coupling
Ullmann Reaction

Williamson Synthesis

This method is suitable for the preparation of a wide variety of unsymmetric ethers. The nucleophilic substitution of halides with alkoxides leads to the desired products.

If the halides are sterically demanding and there are accessible protons in the β-position, the alkoxide will act as a base, and side products derived from elimination are isolated instead.


Mechanism of the Williamson Synthesis