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: Contribution to journalArticle

抜粋

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.

元の言語英語
ジャーナルChemCatChem
DOI
出版物ステータス受理済み/印刷中 - 2020

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

フィンガープリント Polystyrene-Supported PPh<sub>3</sub> 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。これらはともに一意のフィンガープリントを構成します。

  • これを引用