Microwave promoted Heck reactions using an oligo(ethylene glycol)-bound SCS palladacycle under thermomorphic conditions

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 alken...

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Published inGreen chemistry : an international journal and green chemistry resource : GC Vol. 6; no. 6; pp. 280 - 285
Main Authors Bergbreiter, David E., Furyk, Steven
Format Journal Article
LanguageEnglish
Published 01.01.2004
Subjects
alkenes
Atmosphere
Catalysts
green development
halides
Palladium
Recycling
Solvents
Waste management
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1463-9262
1463-9270
DOI:10.1039/b316342c