Intramolecular cycloaddition of nitrones with sulfur-substituted dienes and its synthetic applications
作者:Shang-Shing P. Chou、Yu-Ju Yu
DOI:10.1016/s0040-4039(97)01037-x
日期:1997.7
A series of sulfur-substituted dienyl nitrones were conviently prepared from the 3-sulfolene precursors. Intramolecular 1,3-dipolar cycloaddition reactions gave the fused bicyclic isoxazolidines. The regio- and stereochemical outcome of these reactions as well as the synthetic applications have been explored.
从3-环丁烯前体方便地制备了一系列硫取代的二烯基硝基酮。分子内的1,3-偶极环加成反应得到稠合的双环异恶唑烷。已经研究了这些反应的区域和立体化学结果以及合成应用。