A highly stereoselective ring closure of α-diazo-γ-butyrolactones to form the 2,6-diaryl-3,7-dioxabicyclo[3.3.0]octane ring system is reported; a formal synthesis of the furofuran lignan asarinin 1 is also described.
报告了δ-偶氮-δ
-丁内酯形成 2,6- 二芳基-3,7-二氧杂环双环[3.3.0]
辛烷环系统的高度立体选择性闭环;还描述了糠
呋喃木质素 asarinin 1 的正式合成。