Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions of potassium aryl- and heteroaryltrifluoroborates.
摘要：
An extended study of the reactivity of potassium aryl- and heteroaryltrifluoroborates in Suzuki-Miyaura cross-coupling reactions is presented. The coupling of aryl- and electron-rich heteroaryltrifluoroborates with aryl and activated heteroaryl bromides proceeds readily under ligandless conditions. When deactivated aryl- and heteroaryltrifluoroborates are coupled with aryl and heteroaryl bromides and chlorides, a low loading (0.5-2%) of PdCl(2)(dppf).CH(2)Cl(2) efficiently catalyzes the reactions. Under either condition, reactions can generally be carried out in an open atmosphere.
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DOI：
10.1002/chin.200338069
被引量：
年份：
2003
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