Synthesis of Enantiopure 1-Azaspiro[4.5]decanes by Iodoaminocyclization of Allylaminocyclohexanes
作者:Faïza Diaba、Gemma Puigbó、Josep Bonjoch
DOI:10.1002/ejoc.200700056
日期:2007.6
The 5-endo iodine-promoted ring closure of 4-allyl-4-(alkylamino)cyclohexanone derivatives gives the corresponding 1-azaspiro[4.5]decanes in good yields. The reaction was tested with enantiopure homoallylamines to evaluate the diastereoselectivity of the process and to provide a route for possible intermediates to the natural products embodying this azabicyclic ring.(© Wiley-VCH Verlag GmbH & Co. KGaA
4-烯丙基-4-(烷基氨基)环己酮衍生物的5-内碘促进环闭合以良好的产率得到相应的1-氮杂螺[4.5]癸烷。该反应用对映纯的高烯丙胺进行测试,以评估该过程的非对映选择性,并为包含该氮杂双环的天然产物的可能中间体提供途径。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)