Hydrazones as Productive Dienophiles in the Inverse Electron Demand Diels-Alder Reactions of 1,3,5-Triazines
作者:Kai Yang、Zhen Yang、Qun Dang、Xu Bai
DOI:10.1002/ejoc.201500499
日期:2015.7
ynamines and amidines are common dienophiles for inverse electron demand Diels–Alder (IEDDA) reactions of 1,3,5-triazines, however, their wide utilization may be limited due to their poor stability to conventional purification methods such as silica gel chromatography. To address this limitation, oximes and hydrazones are envisioned as potential alternative dienophiles, even though they are primarily
烯胺、炔胺和脒是 1,3,5-三嗪的反电子需求 Diels-Alder (IEDDA) 反应的常见亲二烯体,但是,由于它们对常规纯化方法(如硅胶色谱)的稳定性较差,因此它们的广泛应用可能受到限制. 为了解决这个限制,肟和腙被设想为潜在的替代亲二烯体,尽管它们由于其出色的稳定性或缺乏反应性而主要用作保护基团。通过研究取代基效应和优化反应条件,肟和腙被开发为用于 1,3,5-三嗪 IEDDA 反应的生产亲二烯体,导致所需的 IEDDA 产品以中等(对于肟)到优异(对于腙)的产率。