Department of Chemistry, University of Minnesota, 207 Pleasant Street SE Minneapolis, Minnesota 55455, USA.
Org Lett. 2012 Sep 21;14(18):4738-41. doi: 10.1021/ol3019488. Epub 2012 Sep 10.
The results of several experiments designed to probe the energetic viability of a reaction path for generation of penostatins I (3) and F (4) via spontaneous [3,3]-sigmatropic rearrangement are reported. In particular, the enolate derived from the 2-vinyl-6-acyldihydropyran 8-cis gave cyclooctadienone 12 via facile anionic oxy-Claisen rearrangement, demonstrating the feasibility of such an event.
报告了几项旨在探究通过自发 [3,3]-σ重排生成 penostatins I(3)和 F(4)的反应途径的能量可行性的实验结果。特别是,2-乙烯基-6-酰基二氢吡喃 8-顺式的烯醇盐很容易通过阴离子氧-Claisen 重排生成环辛二烯酮 12,证明了这种反应的可行性。