pyridine; lead(IV) acetate; copper diacetate 1.) benzene, RT, 2.) a.) benzene, RT, 2 h, b.) reflux, 1 h; Yield given. Multistep reaction;

1: 1.) cupric acetate, pyridine, 2.) lead tetraacetate / 1.) benzene, RT, 2.) a.) benzene, RT, 2 h, b.) reflux, 1 h 2: 100 percent / methanol / 3 h / Heating View Scheme