One of the principal ways to prepare ethers is the Williamson ether synthesis. In this reaction, an alkoxide ion is allowed to react with an alkyl halide (R-X) or alkyl tosylate (R-OTs). Select the appropriate answers from each dropdown to correctly complete these statements about the Williamson ether synthesis.
The Williamson ether synthesis is an
reaction. The alkoxide ion serves as the
. The alkyl halide or tosylate must be a
substrate for the reaction to be favored.