title: Reactivity of Aryl Halides for Reductive Dehalogenation in (Sea)water Using Polymer-Supported Terpyridine Palladium Catalyst.
abstract: A polymer-supported terpyridine palladium complex was prepared. The complex was found to promote hydrodechlorination of aryl chlorides with potassium formate in seawater. Generally, reductive cleavage of aryl chlorides using transition metal catalysts is more difficult than that of aryl bromides and iodides (reactivity: I > Br > Cl); however, the results obtained did not follow the general trend. Therefore, we investigated the reaction inhibition agents and found a method to remove these inhibitors. The polymeric catalysts showed high catalytic activity and high reusability for transfer reduction in seawater.
authors.affiliation: Department of Chemistry, University of the Ryukyus, Okinawa 903-0213, Japan. suzuka@sci.u-ryukyu.ac.jp.
authors.forename: Toshimasa
authors.initials: T
authors.lastname: Suzuka
authors.affiliation: Department of Chemistry, University of the Ryukyus, Okinawa 903-0213, Japan. e123346@eve.u-ryukyu.ac.jp.
authors.forename: Hiromu
authors.initials: H
authors.lastname: Sueyoshi
authors.affiliation: Department of Chemistry, University of the Ryukyus, Okinawa 903-0213, Japan. e113331@eve.u-ryukyu.ac.jp.
authors.forename: Shohei
authors.initials: S
authors.lastname: Maehara
authors.affiliation: Department of Chemistry, University of the Ryukyus, Okinawa 903-0213, Japan. rei_sz@yahoo.co.jp.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Ogasawara
mesh_terms: D000098:Acetophenones / Q000737:chemistry*; D002384:Catalysis; D017743:Equipment Reuse; D006219:Halogens / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods; D002721:omega-Chloroacetophenone / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: D000098:Acetophenones; D006219:Halogens; D011725:Pyridines; D014874:Water Pollutants, Chemical; D010165:Palladium; C013190:phenacyl bromide; D002721:omega-Chloroacetophenone; C017838:4-chloroacetophenone
keywords: hydrodechlorination; palladium; polymer-support; seawater