New Way to Methylene-2H-azirines and Their Use as Powerful Intermediates for the Stereo- and Regioselective Synthesis of Compounds with Vinylamine Substructure
作者:Joseph Rodolph Fotsing、Klaus Banert
DOI:10.1002/ejoc.200600302
日期:2006.8
New and relatively stable methylene-2H-azirines 1 have been prepared by photolysis of allenyl azides or from 2-halo-2H-azirines by elimination of HX (X = halogen). The reaction of these methylene-2H-azirines with nucleophiles led to the highly stereo- and regio-selective formation of novel 1-aminovinyl derivatives with good to excellent yields. The trapping reactions of the less stable methylene-2H-azirines
新的和相对稳定的亚甲基-2H-氮丙啶 1 已通过烯基叠氮化物的光解或通过消除 HX(X = 卤素)从 2-卤代-2H-氮丙啶制备。这些亚甲基-2H-氮丙啶与亲核试剂的反应导致高度立体和区域选择性地形成新型 1-氨基乙烯基衍生物,收率良好至极好。较不稳定的亚甲基-2H-氮丙啶的捕集反应产生了类似的结果。此外,我们能够证明之前关于 2-(苯磺酰基)丙烯腈 (9) 的报告是基于不正确的数据。因此,可以认为后一种化合物在本文中首先被描述。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)