Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Selective Dehalogenative Homocoupling of Haloarylsulfonates by th Use of Palladium Catalyst

  • Published : 20010400
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Abstract

The palladium catalyzed dehalogenative homocoupling of haloarylsulfonates under reductive conditions has proceeded selectively depending on the type of the halogen. Thus, an iodo or a bromo leaving group of haloarylsulfonates was homocoupled to gi ve symmetrical biaryls in good yields with the sulfonate group intact, whereas a chloro leaving group gave no reaction under the conditions used. When the more reactive nickel catalyst was employed instead of the palladium catalyst in the reaction, both dehalogenative and desulfonative homocouplings of haloarylsulfonates occurred regardless of the type of the halogen used.

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References

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