This type of reactivity has quickly become one of the cornerstones of modern catalysis .In a patent, Recommanded Product: (S)-Butane-1,3-diol, name is (S)-Butane-1,3-diol, belongs to chiral-oxygen-ligands compound, introducing its new discovery. Recommanded Product: (S)-Butane-1,3-diol
A number of ether- and thioether-substituted ferrocenes (1,1?-bis(1,3-dioxane-2-yl)ferrocene 1, 1,1?-bis(5-methyl-1,3- dioxane-2-yl)ferrocene 2, 1,1?-bis(4-methyl-1,3-dioxane-2-yl)ferrocene 3, 1,1?-bis[(R)-(-)-4-methyl-1,3-dioxane-2-yl]ferrocene 4, 1,1?-bis(4,6-dimethyl-1,3-dioxane-2-yl)ferrocene 5, and 1,1?-bis(1,3-dithiane-2-yl)ferrocene 6) were synthesised by direct condensation of 1,1?-diformylferrocene with the corresponding diols or dithiols. The crystal structures of 1, 5a, 5b, and 6 were determined by X-ray diffraction studies. Electrospray ionisation mass spectrometry was used to investigate the binding behaviour of 1 and 6 toward alkali as well as transition metal cations. The dioxane-containing species 1 showed high affinity toward Li+ and Na+, whereas the dithiane derivative 6 bound, as expected, preferentially to Hg2+. The Royal Society of Chemistry 2003.
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Reference：
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate