Synthesis of Substituted Adamantylzinc Reagents Using a Mg-Insertion in the Presence of ZnCl<sub>2</sub> and Further Functionalizations
作者:Christoph Sämann、Vasudevan Dhayalan、Peter R. Schreiner、Paul Knochel
DOI:10.1021/ol500781j
日期:2014.5.2
in the presence of ZnCl2 allows an efficient synthesis of adamantylzinc reagents starting from the corresponding functionalized tertiary bromides. The highly reactive adamantylzinc species readily undergo a broad variety of functionalizations such as Negishi cross-couplings, Cu(I)-catalyzed acylations and allylations, and 1,4-addition reactions leading to the expected products in excellent yields. Furthermore
在ZnCl 2存在下通过LiCl介导的Mg插入可以从相应的官能化叔溴开始有效合成金刚烷基锌试剂。高反应性的金刚烷基锌类很容易经历各种各样的功能化,例如Negishi交叉偶联,Cu(I)催化的酰化和烯丙基化,以及1,4-加成反应,从而以预期的产率获得了预期的产物。此外,金刚烷基部分可以作为α-取代基引入对噻吩中,由于更高的亲脂性和防止π堆积而增加了其溶解度。