Microwave promoted Heck reactions using an oligo(ethylene glycol)-bound SCS palladacycle under thermomorphic conditions
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Palladium catalyzed Heck couplings utilizing an air-stable, water-soluble oligo(ethylene glycol)-bound SCS palladacycle catalyst and microwave irradiation lead to formation of several cinnamic acid derivatives with reaction times of less than 1 hour. Such couplings of various aryl halides with alkene acceptors occur in an air atmosphere with aqueous and organic solvents are described. Recycling of the catalyst was accomplished using a 10% aqueous DMA-heptane thermomorphic system that was advantageously homogeneous during these microwave promoted reactions and biphasic during the catalyst recovery step.
author list (cited authors)
Bergbreiter, D. E., & Furyk, S.