Novel One-Pot Method for Chemoselective Bromination and Sequential Sonogashira Coupling
作者:Noriki Kutsumura、Kentaro Niwa、Takao Saito
DOI:10.1021/ol101110v
日期:2010.8.6
An efficient one-pot method for bromination-elimination of allyl alcohol derivatives and sequential Sonogashira coupling has been developed. A highlight of the method is chemoselective DBU-promoted elimination of vicinal dibromoalkanes having an adjacent O-functional group.
One-Pot Method for Regioselective Bromination and Sequential Carbon-Carbon Bond-Forming Reactions of Allylic Alcohol Derivatives
An efficient one-potmethod for the regioselective bromination of allylicalcoholderivatives (two-step reaction sequence) followed by Sonogashira, Negishi, or Suzuki–Miyaura coupling reactions in the same reaction vessel (three-step reaction sequence) has been developed. The key reaction in these one-pot systems is the regioselective DBU-promoted trans HBr elimination of vicinal dibromides bearing