Palladium-Catalyzed Direct α-Arylation of Benzyl Thioethers with Aryl Bromides
作者:Gustavo Frensch、Nusrah Hussain、Francisco A. Marques、Patrick J. Walsh
DOI:10.1002/adsc.201400679
日期:2014.8.11
diversity. A novel and efficient palladium-catalyzed direct sp3 C-H arylation of aryl and alkyl benzyl thioether derivatives with aryl bromides is reported. The reaction involves reversible deprotonation of the benzylic C-H's of the thioether with either LiN(SiMe3)2 or NaN(SiMe3)2 and subsequent cross-coupling to provide the functionalized products in up to 97% yield. A screen of 24 of the most successful