Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5271219 | Tetrahedron Letters | 2013 | 5 Pages |
Abstract
Moisture and air-stable, robust palladacycle phosphine-ylide complexes as catalyst precursors were used in additive- and amine-free Sonogashira cross-coupling reactions. Various aryl halides were coupled with phenylacetylene in DMF, under air, in the presence of 0.001 mol % of the catalyst to afford the corresponding cross-coupled products in good to excellent yields. Application of the five-membered palladacycle [(P^C)PdCl2] (C1) in Sonogashira coupling reaction produced comparable catalytic activities of the seven-membered [(C^C)PdCl2] (C2) analogs.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Seyyed Javad Sabounchei, Mohsen Ahmadi, Zahra Nasri, Esmaeil Shams, Mohammad Panahimehr,