作者:David Tejedor、Samuel Delgado‐Hernández、Lucía Colella、Fernando García‐Tellado
DOI:10.1002/chem.201903402
日期:2019.11.27
electron-withdrawing functionality has been implemented. The catalytic manifold operates under the reactivity generation principle "a good nucleophile generates a strong base", and it uses 1,4-diazabicyclo[2.2.2]octane (DABCO) as the catalyst, activated terminal alkynes as substrates and acetone cyanohydrin as the cyanide source. The acrylonitriles obtained as E,Z mixtures are straightforwardly resolved by simple flash
已经实现了通用的,实用的和可扩展的有机催化氢氰化歧管,以提供具有吸电子功能的β-取代的丙烯腈。催化歧管按照反应活性生成原理“良好的亲核试剂生成强碱”操作,它使用1,4-二氮杂双环[2.2.2]辛烷(DABCO)作为催化剂,活化的末端炔烃作为底物,丙酮氰醇作为催化剂。氰化物来源。通过简单的快速色谱法可直接拆分作为E,Z混合物获得的丙烯腈,以制备量提供纯净的异构体。