Polystyrene-Supported PPh3 in Monolithic Porous Material: Effect of Cross-Linking Degree on Coordination Mode and Catalytic Activity in Pd-Catalyzed C−C Cross-Coupling of Aryl Chlorides

Hikaru Matsumoto, Yu Hoshino, Tomohiro Iwai, Masaya Sawamura, Yoshiko Miura

研究成果: ジャーナルへの寄稿学術誌査読

10 被引用数 (Scopus)

抄録

Hybridization of porous synthetic polymer and sophisticated ligands play an important role in transition-metal catalysis for chemical transformations at laboratory and industrial levels. A monolithic porous polymer, which is a single piece with continuous macropores, is desired for high permeability, fast mass transfer properties, high stability, and easy modification. Herein, we first develop a monolithic porous polystyrene containing three-fold cross-linked PPh3 (M-PS-TPP) for transition-metal catalysis. The monolithic and macroporous structure of M-PS-TPP was fabricated via polymerization-induced phase separation using porogenic solvent. Moreover, the M-PS-TPP was synthesized using different feed ratios of divinylbenzene (DVB) for site-isolation and mono-P-ligating behavior of PPh3. 31P CP/MAS NMR analysis revealed that the different selectivity of M-PS-TPPs was obtained in formation of mono-P-ligation toward PdII. The macroporous properties and controlled mono-P-ligating behavior of M-PS-TPP facilitated the challenging Pd-catalyzed Suzuki-Miyaura cross-coupling reaction of chloroarenes.

本文言語英語
ページ(範囲)4034-4037
ページ数4
ジャーナルChemCatChem
12
16
DOI
出版ステータス出版済み - 8月 20 2020

!!!All Science Journal Classification (ASJC) codes

  • 触媒
  • 物理化学および理論化学
  • 有機化学
  • 無機化学

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「Polystyrene-Supported PPh3 in Monolithic Porous Material: Effect of Cross-Linking Degree on Coordination Mode and Catalytic Activity in Pd-Catalyzed C−C Cross-Coupling of Aryl Chlorides」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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