compounds starting from activated enamines, i.e., 2-nitromethylene-pyrrolidine and pyrrolidin-2-ylidene-acetic acid ethyl ester, with various amines and formaldehyde or ethyl glyoxylate are described. In order to furnish new Mannich type molecules and to improve the yields sequential reaction routes and 1,2,3-benzotriazole-substituted adducts as reactants were also tested. Additionally, the steric structure
摘要 描述了以活化的烯胺,即 2-硝基亚甲基-
吡咯烷和
吡咯烷-2-亚基-
乙酸乙酯为原料,与各种胺和
甲醛或
乙醛酸乙酯合成曼尼希化合物。为了提供新的曼尼希型分子并提高产率,连续反应路线和 1,2,3-苯并三唑取代的加合物作为反应物也进行了测试。此外,通过现代核磁共振方法详细阐明了以高产率意外形成的
三环螺环化合物的空间结构。图形概要