methanol; sodium tetrahydroborate; toluene-4-sulfonic acid 1) t-BuOH, reflux, 3 h, 2) benzene, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given;

methanol; sodium tetrahydroborate; toluene-4-sulfonic acid 1) t-BuOH, reflux, 3 h, 2) benzene, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given;