Unexpected transformation of quinones to spirolactones and to naturally occurring naphthalenic compounds
作者:Eufrânio N. da Silva Júnior、Carlos A. de Simone、Adolfo C.B. de Souza、Cleverson N. Pinto、Tiago T. Guimarães、Maria do Carmo F.R. Pinto、Antônio V. Pinto
DOI:10.1016/j.tetlet.2009.01.058
日期:2009.4
natural quinones of the lapachol group have been used as starting points for the preparation of several bioactive heterocyclic compounds. Herein, we announce that lapachones, derivatives of lapachol, under certain conditions in the presence of inorganic reagents give unexpected products, spirolactones and naphthalenic derivatives, nordihydrolapachenone and tetrahydrotectol, both naturally occurring compounds
在最近几年中,拉帕酚基的天然醌已被用作制备几种生物活性杂环化合物的起点。在此,我们宣布,在某些条件下,在无机试剂存在的情况下,拉帕胆酚的衍生物拉帕酮会产生意想不到的产物,螺内酯和萘衍生物,降二氢拉帕酮和四氢ectol,这两种化合物都是天然存在的化合物。通过X射线分析鉴定了诺地拉帕金酮。拉帕酚本身也可以转化为四氢ectol。