Electric Literature of 538-58-9, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.538-58-9, Name is 1,5-Diphenylpenta-1,4-dien-3-one, molecular formula is C17H14O. In a Article£¬once mentioned of 538-58-9
Functional Ionic Liquids Promoted Double Michael Reaction of Benzofuran-3-one or 1-Indone and Symmetric Dienones: Construction of Spiro[benzofuran-2,1?-cyclohexane]-3-one or Spiro[cyclohexane-1,2?-indene]-1?,4(3?H)-dione Derivatives
The double Michael reactions between benzofuran-3-one or 1-indone and symmetric dienones in the presence of catalytic ionic liquids were successfully developed and spiro[benzofuran-2,1?-cyclohexane]-3-one or spiro[cyclohexane-1,2?-indene]-1?,4(3?H)-dione derivatives containing a spiro quaternary stereogenic center, which widely exist in biologically active products and building blocks in organic synthesis, were obtained in excellent yields (up to 99%). This catalytic system was also extended to the double Michael reaction of less reactive 1-indone and the desired products were also obtained in 31%-62% yields. The catalytic system was highly active and efficient for a broad of substrates under mild conditions.
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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