Miyaura-Suzuki cross coupling reactions:: the role of Pd/CaCO3 as catalyst reservoir

被引：23

作者：

Oliveira, Bianca L. ^{[1
]}

Antunes, Octavio A. C. ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Quim, BR-21949900 Rio de Janeiro, Brazil

来源：

LETTERS IN ORGANIC CHEMISTRY | 2007年 / 4卷 / 01期

关键词：

Pd(0) reservoir; catalysis; leaching; C-C; cross coupling; homeopathic concentrations;

D O I：

10.2174/157017807780037540

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Miyaura-Suzuki reaction was carried out in water-ethanol solutions by using Pd/CaCO3 as catalyst. Very good yields were obtained using different bases,, phosphates or carbonates. The catalyst was recycled up to seven times without any loss of activity. To evidence the presence of Pd(II) in solution as the true catalyst, the solids were removed by decantation and the reaction products were extracted with hexane. The water-ethanol solution was recycled and kept catalytic activity.

引用

页码：13 / 15

页数：3

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