The latter can be explained by the fact that the mechanical application of force can open new and exotic reaction pathways. However, this can also become a disadvantage, because in situ analyses are either not possible or only possible with special equipment, which makes the elucidation of reaction mechanisms significantly more difficult or even impossible . Another aspect worth mentioning is that mechanochemical reactions often occur out of equilibrium and the reaction mechanism is not reproducible. The mechanochemical modification of technical lignins has already been systematically investigated in several studies. Especially inorganic bases are suitable catalysts for the cleavage of the frequently occurring β-O-4 ether bond .