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2005
Polyphenyl derivatives
Q 0700
Polystyrene-Supported Triphenylarsine Reagents and Their Use in Suzuki
Reactions. — Soluble non-crosslinked polystyrene-bound AsPh3 and
11- 108 Cross-Coupling
insoluble JandaJel—AsPh3 are found to be useful ligands for the coupling reaction of
aryl iodides and bromides with arylboronic acids. Reactions performed with the latter
reagent require elevated temperatures and prolonged reaction times. Both polymers can
be readily recovered and reused with no decrease in effectiveness. The use of the soluble polymer even allows for the recovery and recycling of the palladium catalyst. —
(LAU, K. C. Y.; HE, H. S.; CHIU*, P.; TOY*, P. H.; J. Comb. Chem. 6 (2004) 6,
955-960; Dep. Chem., Univ. Hong Kong, Hong Kong, Peop. Rep. China; Eng.) —
Klein
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