Chemical partitioning agents and methods of using same
申请人:University of Pittsburgh
公开号:US06706839B1
公开(公告)日:2004-03-16
The present invention is directed to partitioning agents and methods of using same to effectuate separation of a reactant, intermediate product, and/or final product from a reaction mixture while minimizing the need for traditional separation or isolation techniques.
Palladium-Catalyzed Dehydrative Heck Olefination of Secondary Aryl Alcohols in Ionic Liquids: Towards a Waste-Free Strategy for Tandem Synthesis of Stilbenoids
All in one: A tandemstrategy has been developed wherein secondaryarylalcohols are directly coupled with aryl halides to provide stilbenoids through a dehydrativeHeck sequence in the ionicliquid [hmim]Br, and with water as a by‐product under microwave irradiation (see scheme). Classical methods do not permit this sequence to proceed in one pot, and some methods require multiple steps. hmim=1‐n