ChemSusChem p. 293 - 299 (2012)
Update date:2022-08-10
Topics:
Yamada, Yoichi M. A.
Watanabe, Toshihiro
Ohno, Aya
Uozumi, Yasuhiro
We have developed a variety of polymeric palladium-nanoparticle membrane-installed microflow devices. Three types of polymers were convoluted with palladium salts under laminar flow conditions in a microflow reactor to form polymeric palladium membranes at the laminar flow interface. These membranes were reduced with aqueous sodium formate or heat to create microflow devices that contain polymeric palladium-nanoparticle membranes. These microflow devices achieved instantaneous hydrodehalogenation of aryl chlorides, bromides, iodides, and triflates by 10-1000 ppm within a residence time of 2-8 s at 50-90°C by using safe, nonexplosive, aqueous sodium formate to quantitatively afford the corresponding hydrodehalogenated products. Polychlorinated biphenyl (10-1000 ppm) and polybrominated biphenyl (1000 ppm) were completely decomposed under similar conditions, yielding biphenyl as a fungicidal compound. Streamlined nanoparticles: We developed a variety of polymeric Pd nanoparticle membrane-installed microflow devices. Instantaneous hydrodehalogenation of aryl halides can be achieved at short residence times and moderate temperatures using a safe, nonexplosive aqueous sodium formate to quantitatively afford the corresponding hydrodehalogenated products. PCB and PBB can also be fully decomposed under similar conditions to give a biphenyl. Copyright
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