Consider the pairs of ethers, numbered 1 through 6, shown below. To the right of each pair is a description of reaction conditions to be applied to each. One compound of the pair will react more rapidly than the other. Using the buttons below the structures, select which ether of the two will be more rapidly cleaved.
In problem 4 the methyl ether is the focus of the reaction.

	Ether Pairs	Cleavage Conditions
1.
2.
3.
4.
5.
6.