Stereoselective Functionalization of 2-(1-Aminoalkyl)aziridines via Lithiation of Aziridine-Borane Complexes
作者:José M. Concellón、Pablo L. Bernad、José Ramón Suárez
DOI:10.1002/chem.200500113
日期:2005.7.18
successive formation of aziridine-borane complexes, lithiation, treatment with a variety of electrophiles and final decomplexation is described. The influence of the structure of the starting complexes 2 and of the electrophiles in the stereoselectivity of this process has been studied. Finally, successive double lithiation-electrophile reactions were carried out affording enantiopure 1,2,3,3-tetrasubstituted
(2S,1'S)-2-(1'-氨基烷基)氮丙啶的氮丙啶环的高度选择性官能化通过相继形成氮丙啶-硼烷络合物,锂化,用各种亲电试剂处理和最终分解而进行了描述。已经研究了起始配合物2和亲电试剂的结构在该方法的立体选择性中的影响。最后,进行连续的两次锂化-亲电反应,得到具有高选择性的对映体纯的1,2,3,3-四取代的氮丙啶-硼烷配合物。