Isocyclic Compounds
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ChemInform Abstract: A Convenient Synthesis of 4-Alkenyl-2-cyclopenten-1-ones by Palladium(II)-Catalyzed Cross-Coupling of 4-Bromo-2-cyclopenten-1-one with 1-Vinylstannanes.
First published: January 2, 1990
ChemInform Abstract
The title reaction of 4-bromo-2-cyclopenten-1-one (I) with the E-vinylstannanes (II) or the 2-vinylstannanes (V) gives the 4-substituted cyclopentenones (III) and (VI), whereas the Z-vinylstannanes (VIII) form predominantly the dienes (IX).
