One-Pot Synthesis of Trisubstituted Conjugated Dienes via Sequential Suzuki−Miyaura Cross-Coupling with Alkenyl- and Alkyltrifluoroborates
作者:Gary A. Molander、Yasuo Yokoyama
DOI:10.1021/jo052636k
日期:2006.3.1
Pd(PPh3)4 is described. This synthetic method proceeds smoothly in one pot under mild reaction conditions to provide the corresponding trisubstituted, conjugated dienes in excellent yield. Moreover, the method is operationally very simple because the organotrifluoroborates are stable in air, and the byproducts are innocuous inorganic salts.
描述了在存在Pd(PPh 3)4的情况下先后使用多种烯基三氟硼酸酯和随后的烷基三氟硼酸酯对1,1-二溴烯烃进行的顺序立体选择性解构。该合成方法在温和的反应条件下在一锅中顺利进行,从而以优异的产率提供相应的三取代的共轭二烯。而且,该方法在操作上非常简单,因为有机三氟硼酸盐在空气中稳定,并且副产物是无害的无机盐。