Base controlled diverse reactivity of allyl cyanide for synthesis of multi-substituted benzenes
作者:Pratik Yadav、Ranjay Shaw、Amr Elagamy、Abhinav Kumar、Ramendra Pratap
DOI:10.1039/c8ob01270a
日期:——
functionalized 2H-pyran-2-ones has been demonstrated for the synthesis of various multi-substituted benzenes through a tandem process. We observed that lithium hydroxide provides a major product from α-attack and a minor product from γ-attack of allyl cyanide, while the use of sodium hydride as a base exclusively provides the product by γ-attack of allyl cyanide. We have also performed NMR experiments to understand
已经证明了适当官能化的2 H-吡喃-2-酮的碱控制的区域选择性1,6-氰基烯丙基化用于通过串联方法合成各种多取代的苯。我们观察到,氢氧化锂提供的主要产物是α-攻击,而次要的产物是γ-烯丙基氰,而氢化钠作为碱只能提供γ-攻击的烯丙基氰。我们还进行了NMR实验,以了解机理。该化合物的结构通过单晶X射线分析确认。