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Palladium-catalyzed regiocontrolled alpha-arylation of trimethylsilyl enol ethers with aryl halides.

ABSTRACT: Inter- and intramolecular arylations of trimethylsilyl enol ethers with aryl halides are accomplished regiospecifically in the presence of a palladium catalyst and tributyltin fluoride in refluxing benzene or toluene. The optimal catalyst system called for the use of Pd2(dba)3 and tri-tert-butylphosphine in ca. 1:2 ratio. Aryl iodides, bromides, and chlorides are all effective arylation partners in this reaction. [reaction: see text]

SUBMITTER: Iwama T

PROVIDER: S-EPMC2518395 | biostudies-literature | 2006 Dec

REPOSITORIES: biostudies-literature

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Palladium-catalyzed regiocontrolled alpha-arylation of trimethylsilyl enol ethers with aryl halides.

Iwama Tetsuo T Rawal Viresh H VH

Organic letters 20061201 25

Inter- and intramolecular arylations of trimethylsilyl enol ethers with aryl halides are accomplished regiospecifically in the presence of a palladium catalyst and tributyltin fluoride in refluxing benzene or toluene. The optimal catalyst system called for the use of Pd2(dba)3 and tri-tert-butylphosphine in ca. 1:2 ratio. Aryl iodides, bromides, and chlorides are all effective arylation partners in this reaction. [reaction: see text] ...[more]

PMID: 17134257

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