Regioselective Suzuki couplings of non-symmetric dibromobenzenes: alkenes as regiochemical control elements
作者:Peng Zhao、Marshall D. Young、Christopher M. Beaudry
DOI:10.1039/c5ob00717h
日期:——
Suzuki couplings of non-symmetric dibromobenzenes is investigated. Selectivities are dependent on the proximity of the bromineatom to alkene substituents, not on steric or electronic effects. Extension to a one-pot three-component Suzuki reaction leads to efficient terphenyl syntheses.
Enantioselective and Regioselective Pyrone Diels-Alder Reactions of Vinyl Sulfones: Total Synthesis of (+)-Cavicularin
作者:Peng Zhao、Christopher M. Beaudry
DOI:10.1002/anie.201406621
日期:2014.9.22
The total synthesis of (+)‐cavicularin is described. The synthesis features an enantio‐ and regioselective pyrone Diels–Alderreaction of a vinyl sulfone to construct the cyclophane architecture of the natural product. The Diels–Alder substrate was prepared by a regioselective one‐pot three‐component Suzuki reaction of a non‐symmetric dibromoarene.