A one-pot electrophilic cyanation–functionalization strategy for the synthesis of disubstituted malononitriles
作者:L. Reginald Mills、Sophie A.L. Rousseaux
DOI:10.1016/j.tet.2019.05.004
日期:2019.8
Malononitriles are valuable synthetic intermediates for many applications, including the synthesis of herbicides and other biologically active molecules, and the synthesis of chiral ligands for asymmetric catalysis. This article describes the development of a procedure for the conversion of primary nitriles to malononitriles using dimethylmalononitrile, a commercial, non-toxic, carbon-bound source
丙二腈是用于许多应用的有价值的合成中间体,包括除草剂和其他生物活性分子的合成,以及用于不对称催化的手性配体的合成。本文介绍了使用二甲基丙二腈(一种商业的,无毒的,碳键合的亲电子氰化物源)将伯腈转化为丙二腈的方法的开发。此过程避免使用有毒的氰化物或丙二腈作为起始原料。该方案还适用于由苄基溴生成的苄基格氏试剂的二氰化反应,从无腈前体生成功能齐全的丙二腈。