The Novel Skeletal Rearrangement of Cyclopentanones into Hydroazulenones via a Radical Process and its Application to the Formal Synthesis of Damsinic Acid
作者:Atsushi Nishida、Irie Miyoshi、Yukie Ogasawara、Shinji Nagumo、Norio Kawahara、Mayumi Nishida、Hiroaki Takayanagi
DOI:10.1016/s0040-4020(00)00892-9
日期:2000.11
rearrangement of cyclopentanones with pentynyl side chains into hydroazulene compounds via a radical process was developed. The presence of a triethylsilyloxy group at the α-position of the cyclopentanone was found to increase the reactivity. Except for this, there was no limitation of the reaction. The reaction was also applied to synthetic studies of damsinic acid, which was isolated from Ambrosia ambrosioides
摘要 开发了一种通过自由基过程将具有戊炔基侧链的环戊酮骨架重排成氢化薁化合物的新方法。发现在环戊酮的 α 位存在三乙基甲硅烷氧基会增加反应性。除此之外,反应没有限制。该反应还应用于 damsinic 酸的合成研究,该酸与 damsin 一起从 Ambrosia ambrosioides (Cav.) Payne 中分离出来。