A New and Convenient Asymmetric Synthesis of α-Amino- and α-Alkyl-α-aminophosphonic Acids Using <i>N</i>-<i>tert</i>-Butylsulfinyl Imines as Chiral Auxiliaries
作者:Chengye Yuan、Qianyi Chen
DOI:10.1055/s-2007-990872
日期:2007.12
successfully at room temperature with potassium carbonate as base to afford α-amino- and α-alkyl-α-amino- N-( TERT-butylsulfinyl)phosphonates in good to excellent chemical yield and diastereoselectivity. The major diastereo-mers were separated and smoothly converted into enantiopure α-amino- and α-alkyl-α-aminophosphonic acids.
亚磷酸二烷基酯与 N- 叔丁基亚磺酰基醛亚胺或酮亚胺的亲核加成在室温下以碳酸钾为碱成功地进行,得到 α-氨基和 α-烷基-α-氨基-N-(叔丁基亚磺酰基)膦酸盐。优异的化学收率和非对映选择性。主要的非对映异构体被分离并顺利转化为对映纯的 α-氨基和 α-烷基-α-氨基膦酸。