toluene-4-sulfonic acid 1.) benzene, reflux, 4.5 h 2.) methanol, 60 min. Geometrically homogeneous; Yield given. Multistep reaction. Yields of byproduct given;

toluene-4-sulfonic acid 1.) benzene, reflux, 4.5 h 2.) methanol, 60 min. Geometrically homogeneous; Yield given. Multistep reaction. Yields of byproduct given;