Synthesis of Optically Active Heterocyclic Compounds by Preparation of 1,3-Dinitro Derivatives and Enzymatic Enantioselective Desymmetrization of Prochiral Diamines
作者:Nicolás RÃos-LombardÃa、Eduardo Busto、Vicente Gotor-Fernández、Vicente Gotor
DOI:10.1002/ejoc.200900875
日期:2010.1
efficient chemical preparation of novel optically active 2-substituted propane-1,3-diamines is described. Diamines have been obtained from the corresponding commercially available aldehydes in a straightforward two-step synthesis via the corresponding 1,3-dinitro compounds, which were hydrogenated under mild reaction conditions by using platinum dioxide as the catalyst. Subsequent enzymatic enantioselective
描述了一种高效化学制备新型光学活性 2-取代丙烷-1,3-二胺的通用方法。通过相应的 1,3-二硝基化合物,通过使用二氧化铂作为催化剂在温和的反应条件下氢化,通过简单的两步合成从相应的市售醛中获得二胺。随后由洋葱假单胞菌脂肪酶介导的酶促对映选择性去对称化允许从良好到高对映体过量(70-90 % ee)的单氨基甲酸酯家族恢复。