Palladium-Catalyzed Double CH Activation Directed by Sulfoxides in the Synthesis of Dibenzothiophenes
作者:Rajarshi Samanta、Andrey P. Antonchick
DOI:10.1002/anie.201100775
日期:2011.5.23
SO shows where to go: A novel double CH activation of aromatic compounds with a sulfoxide as a directing group results in the highly regioselective synthesis of polysubstituted dibenzothiophenes (see scheme). The reaction cascade consists of palladium‐catalyzed double CH activation and a Pummerer rearrangement followed by palladium‐catalyzedCS bond formation.