This type of reactivity has quickly become one of the cornerstones of modern catalysis .In a patent, Recommanded Product: 538-58-9, name is 1,5-Diphenylpenta-1,4-dien-3-one, belongs to chiral-oxygen-ligands compound, introducing its new discovery. Recommanded Product: 538-58-9
The reaction of thiobarbituric acid with different diarylidene ketones 1a-c yields the spiro compounds 2a-c. The diarylidene derivatives 3a-c are synthesized by the condensation of spiro compounds 2a-c with different aldehydes. A series of spiro heterocycles compounds 4a-l, 5a-l, 6a-l, 7a-l, 8a-l, and 9a-l are synthesized from the diarylidene compounds. The structures of the compounds are ascertained from their analytical and spectral data. Some of the compounds are screened for their biological activities. Copyright Taylor & Francis Group, LLC.
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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