A functionalized spiro[4.5]decane framework was synthesized by the Claisen rearrangement of 4-substituted bicyclic dihydropyrans in a highly stereoselective fashion.
功能化的螺[4.5]癸烷骨架是通过4-取代双环二氢吡喃的克莱森重排以高度立体选择性的方式合成的。
Stereoselective total synthesis of (±)-α-vetispirene, (±)-hinesol, and (±)-β-vetivone based on a Claisen rearrangement
The stereoselective total syntheses of (±)-α-vetispirene, (±)-hinesol, and (±)-β-vetivone were accomplished based on a Claisen rearrangement in an alkenyl bicyclic dihydropyran system. The most striking feature of this approach is that the Claisen rearrangement of bicyclic dihydropyran proceeds stereoselectively to provide a multi-functionalized spiro[4.5]decane, which is an efficient precursor for