Guanidines as Nitrogen Lewis-Bases for Nucleophilic Allenoate Activations.- Guanidines as catalysts for direct and indirect CO2 capture and activation.- C2-Symmetric [3.3.0]-Bicyclic Guanidine Organocatalysts.- Bifunctional Guanidine-Hydroxide Organocatalysts.- Conformationally Flexible Guanidine-Bis-ThioureaOrganocatalysts.- Chiral guanidines and related organocatalysts in Michael Reactions.- Bifunctional Guanidine Hydrogen-Bond Donors.- Cooperative Guanidinium-Proline Organocatalyis.- Guanidine-Functionalized Aromatic Compounds in Complex Chemistry / Guanidinat-Borane Complexes.- Guanidines in Supramolecular Coordination Chemistry.- Zinc-Guanidine Complexes for Lactide-Polymerization.- Crabescindine, Batzelladines and Cylindrospermopsin Alkaloids.- Guanidines as Therapeutic Agent / Guanidinium-Anion InteractionsGuanidine as α2-Adrenoceptor Ligands.