Journal
CHINESE JOURNAL OF CHEMISTRY
Volume 27, Issue 7, Pages 1365-1373Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.200990228
Keywords
PdCl2; TBAF; Pd nanoparticle; Suzuki-Miyaura reaction; aryl halide; arylboronic acid
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Pd nanoparticles were generated in situ from PdCl2 in TBAF (n-Bu4NF), which displayed high efficiency for the Suzuki-Miyallra cross-coupling reaction. In the presence of PdCl2 and TBAF, a variety of aryl halides were coupled with arylboronic acids smoothly in moderate to good yields. Moreover, the PdCl2/TBAF system could be recovered and reused several times in the Suzuki-Miyaura reaction, and aryl bromides could be consumed completely by arylboronic acids in about 15-60 min. It is noteworthy that these reactions were conducted under solvent-free, ligand-free and reusable conditions. Mechanism for the PdCl2/TBAF-catalyzed reactions was also discussed.
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