Cobalt-Catalyzed 1,4-Hydrovinylation of Allylsilane and Allylboronic Esters for the Synthesis of Hydroxy-Functionalized 1,4-Dienes
作者:Marion Arndt、Anne Reinhold、Gerhard Hilt
DOI:10.1021/jo100951d
日期:2010.8.6
4-hydrovinylation reaction of allyl trimethylsilane and allyl pinacol boronic ester with symmetrical and unsymmetrical 1,3-dienes generates building blocks for the in situ allylboration or the Lewis acid induced allylation reaction utilizing the corresponding allyl silane derivatives. The products of these three-component reactions are hydroxy-functionalized 1,4-dienes which can be used for the synthesis of pyranones
烯丙基三甲基硅烷和烯丙基频哪醇硼酸酯与对称和不对称的1,3-二烯的钴(I)催化的1,4-氢乙烯基化反应为原位烯丙基硼化或路易斯酸诱导的烯丙基化反应(使用相应的烯丙基硅烷)生成了结构单元衍生品。这些三组分反应的产物是可用于吡喃酮合成的羟基官能化的1,4-二烯。通过首先进行烯丙基化,然后进行钴催化的1,4-氢乙烯基化来合成羟基官能化的1,4-二烯的替代反应顺序也是可能的。因此,可以通过两种方法以收敛的方式产生多官能化的复杂结构。