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2005
Polyphenylalkane derivatives
Q 0720
Biphasic Suzuki Coupling Reactions of Aryl or Benzyl Bromides Employing
Phosphine Ligand Coordinated Palladium Complex. —
32- 105 Cobalt-Containing
Dicobalt-dipalladium complex CPC efficiently catalyzes the title reaction of benzyl
bromides with phenylboronic acid. Better yields are commonly observed in the presence of phase-transfer agent Bu4NBr. The influence of the reaction time is found to be
more crucial than the reaction temperature. Only poor to moderate yields (7-27%) are
obtained by coupling of aryl bromides under the present conditions. — (CHANG,
C.-P.; HUANG, Y.-L.; HONG*, F.-E.; Tetrahedron 61 (2005) 15, 3835-3839; Dep.
Chem., Natl. Chung-Hsing Univ., Taichung 40227, Taiwan; Eng.) — Klein
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