Syntheses of Lamellarins I and K by [3 + 2] Cycloaddition of a Nitrone to an Alkyne
作者:Maite Díaz、Enrique Guitián、Luis Castedo
DOI:10.1055/s-2001-15143
日期:——
Lamellarins I and K were obtained by a new approach based on the 1,3-dipolar cycloaddition of a nitrone to an alkyne. The key cycloaddition yields an isoxazoline which rearranges to afford the central pyrrole ring.
层层素 I 和 K 是通过一种新方法获得的,该方法基于腈氧化物与炔烃的 1,3-双极环加成反应。关键的环加成反应产生了异噁唑啉,随后重排形成中心吡咯环。