As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. COA of Formula: C17H14O, 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
Efficient michael addition of indoles using bismuthyl perchlorate as catalyst
An efficient method for Michael addition of indoles hasbeen developed using bismuthyl perchlorate (BiOClO4·xH2O) as catalyst. The reaction proceeds to give 3-substituted indoles excellently stirring indoles and Michael acceptors in acetonitrile in the presence of the catalyst at room temperature or in much shorter reaction times under sonication at ambient temperature.{A figure is presented}.
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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