Palygorskite-anchored Pd complexes catalyze the coupling reactions of pyrimidin-2-yl sulfonates

PGS–APTES–Pd(OAc) ₂ was prepared through simple and green steps from the natural clay mineral palygorskite. Obviously, the stability and reusability of PGS–APTES–Pd(OAc) ₂ were superior to those of the PGS–Pd catalyst (prepared by the impregnation method) in recycling test.