Stille Cross-Coupling of Activated Alkyltin Reagents under “Ligandless” Conditions
作者:Agnes Herve、Alain L. Rodriguez、Eric Fouquet
DOI:10.1021/jo047907q
日期:2005.3.1
Monoalkyltins activated by a fluoride source are shown to be as reactive as their vinyl or aryl homologues in the Stille coupling reaction, thus providing an easy entry into the pallado-catalyzed formation of Csp3−Csp2 bonds. In addition to this uncommon reactivity, this methodology holds several advantages such as (i) a quantitative preparation of stable and easy to handle alkyltin reagents 2, (ii) a simplified
在Stille偶联反应中,由氟化物源活化的单烷基锡显示出与它们的乙烯基或芳基同系物一样的反应性,因此提供了容易进入Pallado催化的Csp 3 -Csp 2键的形成的能力。除了这种不常见的反应性之外,这种方法还具有一些优点,例如(i)定量制备稳定且易于处理的烷基锡试剂2,(ii)在中性条件下无需任何膦添加配体的简化偶联步骤,以及(iii)从无机无毒锡副产物中轻松纯化有机产物的步骤。