Electric Literature of 538-58-9, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, and a compound is mentioned, 538-58-9, 1,5-Diphenylpenta-1,4-dien-3-one, introducing its new discovery.
REACTION OF SELENONIUM KETO YLIDE WITH DIBENZYLIDENE DERIVATIVES OF KETONES
The reaction of selenium monoketo ylides with the dibenzylidene derivatives of ketones (acetone, cyclopentanone, cyclohexanone) only takes place at one double bond of the dienone by a mechanism of the <1+2>-cycloaddition type with the formation of two isomeric cyclopropyl ketones.In the case of the dibenzylidene derivative of bicyclo<3.3.1>nonan-3-one the type of reaction, i.e., <1+2>– or <1+4>-cycloaddition, is determined by the direction of attack by the selenonium ylide (axial or equatorial).
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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