The acid-catalyzed addition of alcohols to alkenes occurs via a mechanism analogous to acid-catalyzed alkene hydration. the reaction occurs in 3 steps: 1) addition of h+ to the alkene, together with any possible carbocation rearrangements; 2) addition of the alcohol to the carbocation; 3) deprotonation to yield the product ether. draw the product of step 2 when 4-methyl-2-pentene reacts with methanol in the present of h2so4 catalyst.