New C―C bond formation with induced chiral carbon atoms under the presence of polyoxometalate

An unusual inorganic-organic hybrid based on β-Keggin polyanions and organic cations,[H4tpb]2.5[H2bpe]2[SiMoVI9MoV3O40]2 4H2O(1,tpb = 1,2,3,4-tetrakis-4-pyridinium butane), has been synthesized by hydrothermal method. Complex 1 demonstrates for the first time that the in situ multifunctional tpb ligand possesses chiral carbon atoms and thus opens a new route to the chiral synthesis by achiral precursor under environmentally benign conditions.