English: recyclable polymeric phosphine ligand shown below is obtained from ring-opening metathesis polymerization of a norbornene derivative, and has been used in the copper co-catalyzed Sonogashira reaction of methyl piodobenzoate and phenylacetylene using Pd(dba)2·CHCl3 as a palladium source
https://pubs.acs.org/doi/10.1021/jo035318z
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