A Polystyrene‐Cross‐Linking Tricyclohexylphosphine: Synthesis, Characterization and Applications to Pd‐Catalyzed Cross‐Coupling Reactions of Aryl Chlorides. Issue 3 (25th January 2019)

• Record Type: Journal Article
• Authors: Arashima, Junya; Iwai, Tomohiro; Sawamura, Masaya
• Is Part Of: Chemistry, an Asian journal. Volume 14:Issue 3(2019)
• Page Start: 411
• Page End: 415
• Publication Date: 2019-01-25
• Subjects: cross-coupling -- heterogeneous catalyst -- palladium -- polystyrene -- trialkylphosphine; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201801651
• Languages: English
• ISSNs: 1861-4728

Abstract

Abstract: A polystyrene‐cross‐linking tricyclohexylphosphine (PS‐TCP) was synthesized through radical emulsion polymerization of 4‐ tert‐ butylstyrene as a monomer and tris( trans ‐4‐styrylcyclohexyl)phosphine as a threefold cross‐linker. The PS‐TCP showed enhanced ligand performance compared to the corresponding polystyrene‐triphenylphosphine hybrid PS‐TPP and tricyclohexylphosphine in Pd‐catalyzed Suzuki–Miyaura and Buchwald–Hartwig reactions of aryl chlorides. Abstract : Heterogeneous catalyst : A polystyrene‐cross‐linking tricyclohexylphosphine (PS‐TCP) was synthesized through radical emulsion polymerization of 4‐ tert‐ butylstyrene as a monomer and tris( trans ‐4‐styrylcyclohexyl)phosphine as a threefold cross‐linker. The PS‐TCP showed enhanced ligand performance compared to the corresponding polystyrene‐triphenylphosphine hybrid PS‐TPP and tricyclohexylphosphine in Pd‐catalyzed Suzuki–Miyaura and Buchwald–Hartwig reactions of aryl chlorides.