Polymer-bound palladium-catalyzed cross-coupling of organoboron compounds with organic halides and organic triflates

Reusable, Polystyrene‐Resin‐Supported, Palladium‐Catalyzed, Atom‐Efficient Cross‐Coupling Reaction of Aryl Halides with Triarylbismuths

“…Among these supporters, cross-linked polystyrene resins, [6] which can bear different functional groups, provide a suitable supporter. Since the successful use of polystyrenebound palladium catalysts in Suzuki cross-coupling reactions was reported, [7] cross-linked polystyrene supported palladium catalysts have been widely used in organic chemistry reactions. [8] Up to the present, although various organometallic compounds such as organotin, organoboron, and organozinc compounds have been successfully utilized in cross-coupling groups of the triarylbismuths participated in the reaction and produced polyfunctional biaryls in excellent yields.…”

Polymers for Green C–C Couplings

“…The phosphane is usually atwww.eurjic.orgtached to the polymer by one of its aryl substituents, which can be the styrene phenyl (1, Figure 1) or a tethered aryl (2, Figure 1) group. Early work used polystyrene ligand 2, in which palladium was incorporated by reaction with PdCl 2 and subsequent reduction with hydrazine, [50] or by reaction with either [PdCl 2 (NCR) 2 ] or a Pd 0 precursor such as Pd 2 dba 3 or Pd(PPh 3 ) 4 .…”

Efficient Recycling in Suzuki–Miyaura Reactions of Aryl Chlorides with Arylboronic Acids using Polymer‐Supported Aryldicyclohexylphosphine

“…Many anchored Pd catalysts based on polymer-supported mono-or diphosphine, [4] olefin, [5] salen [6] or N-heterocyclic carbene [7] have been described. Generally, the yields in the cross-coupling reactions between aryl iodides or aryl bromides with arylboronic acids are higher than 90 %.…”