OSN 2 methyltetrahydrofuran 1 Article 1 Catalysis 1 Catalysts 1 Chemical industry 1 Cyclization 1 Dinuclear catalysts 1 Gold 1 Gold compounds 1 Homogeneous catalyst 1 Ligands 1 Membrane screenings 1 Membrane separation 1 Membranes 1 Metal recovery 1 Microfiltration 1 Molecules 1 Organic solvent nanofiltration 1 PPA 1 Recovery protocols 1 Removal and recoveries 1 Transition metal catalysis 1 Transition metals 1 alcohol 1 carboxylation 1 catalyst 1 catalyst recovery 1 centriole 1 centrosome 1