Stereoselective sodium borohydride reduction, catalyzed by manganese(II) chloride, of γ-oxo-α-amino acids. A practical approach to syn-γ-hydroxy-α-amino acids
作者:Dušan Berkeš、Andrej Kolarovič、František Považanec
DOI:10.1016/s0040-4039(00)00800-5
日期:2000.7
A highly stereoselective reduction of γ-oxo-α-amino acids by sodium borohydride in the presence of a catalytic amount of manganese(II) chloride gives syn-γ-hydroxy-α-amino acids. Enantiomerically pure syn-(2S,4R,1′S)-4-aryl-4-hydroxy-2-(1′-phenylethylamino)butanoic acids form stable gels in methanol.
在催化量的氯化锰(II)存在下,硼氢化钠可高度立体选择性地还原γ-氧代-α-氨基酸,生成顺式-γ-羟基-α-氨基酸。对映体纯的顺式-(2 S,4 R,1 'S)-4-芳基-4-羟基-2-(1'-苯基乙基氨基)丁酸在甲醇中形成稳定的凝胶。