Intramolecular 1,3-Dipolar Nitrile Oxide Cycloaddition Using Baylis-Hillman Derivatives: Stereoselective Synthesis of Tricyclic Chromenoisoxazolines
作者:Manickam Bakthadoss、Jayakumar Srinivasan、Raman Selvakumar
DOI:10.1055/s-0031-1289707
日期:2012.3
A novel protocol for the construction of tricyclic chromenoisoxazoline frameworks via an intramolecular 1,3-dipolar nitrile oxide cycloaddition (INOC) reaction using Baylis-Hillman derivatives is described for the first time. The INOC reaction leads to a novel class of angularly substituted fused tricyclic chromenoisoxazolines, with the creation of two rings and two adjacent stereocenters, one of them
首次描述了通过使用Baylis-Hillman衍生物的分子内1,3-偶极腈氧化环加成(INOC)反应构建三环苯并异恶唑啉骨架的新方案。INOC反应导致一类新的有角度取代的稠合三环铬异异唑啉,以独特的方式产生了两个环和两个相邻的立体中心,其中一个是全碳四元中心。以高度立体选择性的方式以良好的收率获得三环色异恶唑啉。 1,3-偶极一氧化氮环加成-铬异恶唑啉-立体选择性合成-三环骨架