Elucidation of the Diels–Alder Reaction Kinetics between Diphenylfulvene and Maleimide by Mechanochemistry and in Solution

The Diels–Alder reaction kinetics between diphenylfulvene and maleimide using mechanochemistry in liquid state is described. This was carried out solid a modified vibratory ball-mill with temperature control solution toluene as solvent. effect of temperature, ball mass, material, additives, aging were studied. We reported for the first time mechanochemical depending on ratio mass/mass reagent. A new kinetic model has been established that corresponds well to our experimental data allows an estimation global activation energy. In solution, retro observed. second order formation endo exo reaction. grinding method shows many advantages compared solution: shorter time, total reaction, better selectivity.