Rapid Access to 2‐Methylene Tetrahydrofurans and γ‐Lactones: A Tandem Four‐Step Process
作者:Renxiao Liang、Kai Chen、Qiaohui Zhang、Jiantao Zhang、Huanfeng Jiang、Shifa Zhu
DOI:10.1002/anie.201511133
日期:2016.2.12
A one‐pot tandem process involving hydrolysis, Knoevenagel condensation, Michael addition, and Conia‐ene (HKMC) reactions has been developed for the rapid synthesis of indanone‐fused 2‐methylene tetrahydrofurans from the reaction of enynals and propynols. In this process, two rings and four bonds are generated with 100 % atom‐economy and high step‐efficiency. The resulting tetrahydrofurans were readily
已经开发了一种涉及水解,Knoevenagel缩合,迈克尔加成和Conia-ene(HKMC)反应的一锅串联方法,用于从烯醛和丙炔醇的反应中快速合成茚满酮稠合的2-亚甲基四氢呋喃。在此过程中,以100%的原子经济性和高步进效率生成了两个环和四个键。生成的四氢呋喃很容易被氧化成α-亚甲基γ-内酯,这是天然和生物活性化合物中最重要的亚结构之一。