Chemistry is traditionally divided into organic and inorganic chemistry. SDS of cas: 538-58-9, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 538-58-9
Stereoselective construction of highly functionalized azetidines via a [2 + 2]-cycloaddition
(Figure presented) A facile stereoselective synthesis of highly functionalized azetidines from a novel [2 + 2]-cycloaddition of 2-aminomalonates to chalcones is reported. The desired four-membered ring construction proceeded via a grind-promoted solvent-free Michael addition and a PhIO/Bu4NI mediated oxidative cyclization and afforded azetidines in moderate to good yields with excellent diastereoselectivities.
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Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate