Although these catalysts can be reused, there is no reason to use an expensive support based on immobilized ligands. This also does not protect the product from palladium contamination. Even more effort has gone into the immobilization of homogeneous hydrogenation catalysts. Most of these catalysts ...
de Vries, illustrates the conclusion of their review article on "Why Does Industry Not Use Immobilized Transition Metal Complexes as Catalysts?" Much effort has gone into the immobilization of homogeneous catalysts in an attempt to create a catalyst that is easily removed and that can be reused ...