Preparation of dimethyl (R)- and (S)-2-(2-aminophenyl)-2-hydroxyethylphosphonate from anthranilic acid
作者:Angelina González-Morales、Daniel Dı́az-Coutiño、Mario Fernández-Zertuche、Oscar Garcı́a-Barradas、Mario Ordóñez
DOI:10.1016/j.tetasy.2003.11.038
日期:2004.2
An efficient synthesis of both enantiomers of dimethyl δ-amino-β-hydroxyethylphosphonate 6 has been achieved starting from anthranilic acid, through the resolution of dimethyl (±)-2-(2-N,N-dibenzylaminophenyl)-2-hydroxyethylphosphonate 9 with (S)-O-methylmandelic acid. The absolute configuration of the enantiomers 9 was assigned by the Dale and Mosher approach using the extended Newman projections
的两种对映体的有效合成二δ氨基-β-hydroxyethylphosphonate 6已经实现从邻氨基苯甲酸开始,通过二甲酯的分辨率(±)-2-(2- Ñ,Ñ -dibenzylaminophenyl)-2- hydroxyethylphosphonate 9与(S)-O-甲基扁桃酸。对映体9的绝对构型是由Dale和Mosher方法使用扩展的Newman投影和分子力学确定的。