Palladium-Catalyzed Regiocontrolled α-Arylation of Trimethylsilyl Enol Ethers with Aryl Halides
作者:Tetsuo Iwama、Viresh H. Rawal
DOI:10.1021/ol062093g
日期:2006.12.1
Inter- and intramolecular arylations of trimethylsilylenolethers 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