Organocatalytic, Enantioselective Conjugate Addition of Nitroalkanes to Nitroolefins
作者:Jian Wang、Hao Li、Liansuo Zu、Wei Jiang、Wei Wang
DOI:10.1002/adsc.200600247
日期:2006.10
An organocatalytic, enantioselective conjugate addition reaction of nitroalkanes with nitroolefins has been developed under neat conditions without using an organic solvent. The process, catalyzed by a modified Cinchona alkaloid, affords synthetically useful 1,3-dinitro compounds in good yields (70–82 %) with good degrees of enantioselectivity (67–88 % ee).
硝基烷与硝基烯烃的有机催化对映选择性共轭加成反应已在纯净条件下开发,无需使用有机溶剂。该方法由修饰的金鸡纳生物碱催化,可提供合成有用的1,3-二硝基化合物,收率高(70-82%),对映选择性好(67-88%ee)。