chapter 2 palladium catalysts in suzuki cross- coupling reaction
chapter 2 palladium catalysts in suzuki cross- coupling reaction
chapter 2 palladium catalysts in suzuki cross- coupling reaction
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SO 2NH<br />
N<br />
Pd<br />
SO 2<br />
N SO 2<br />
NH NH<br />
H<br />
O1.5Si N NH<br />
HN H N SiO1.5 O<br />
31<br />
O<br />
O<br />
O<br />
Si S<br />
OMe<br />
O<br />
9<br />
32<br />
N<br />
N<br />
Pd<br />
L L<br />
Figure 3.10. Silica-supported <strong>palladium</strong> complexes used <strong>in</strong> the Suzuki <strong>reaction</strong>s<br />
Silica-supported im<strong>in</strong>opyrid<strong>in</strong>e-based <strong>palladium</strong> complexes, 33 (Figure 3.10),<br />
were shown to have very good catalyst recyclability <strong>in</strong> Suzuki <strong>reaction</strong>s of aryl<br />
bromides (Mobufu et al. 2001) (Table 3.1, entry 8).<br />
Si<br />
33<br />
CH 3<br />
Pd<br />
Cl<br />
N<br />
OH<br />
33