Anodic Modification of Proline Derivatives Using a Lithium Perchlorate/Nitromethane Electrolyte Solution
作者:Shokaku Kim、Kanako Hayashi、Yoshikazu Kitano、Masahiro Tada、Kazuhiro Chiba
DOI:10.1021/ol026713z
日期:2002.10.1
prolines was efficiently generated to accumulate in an undivided cell at 0 degrees C by an anodic oxidation of N-acylprolines or alpha'-phenylsulfanylated N-acylproline derivatives in a lithium perchlorate/nitromethane solution. The iminium cation intermediates gave modified prolines by a reaction with nucleophiles under mild conditions.
[反应:参见正文]通过在高氯酸锂/硝基甲烷溶液中对N-酰基脯氨酸或α'-苯磺酰化的N-酰基脯氨酸衍生物进行阳极氧化,可有效地生成脯氨酸的N-酰基亚胺阳离子,使其在0°C的未分裂细胞中积累。在温和条件下,亚胺阳离子中间体通过与亲核试剂反应生成脯氨酸。