Asymmetric Induction during the Aminolysis of 5(4<i>H</i>)-Oxazolones from<i>N</i>-Benzoyl Amino Acids; Almost Specific Formation of One Epimer in the Reaction of the Oxazolone from<i>N</i>-Benzoyl-DL-<i>t</i>-leucine with Methyl L-Prolinate
作者:Toshifumi Miyazawa、Toshihiko Otomatsu、Katsutoshi Higashi、Takashi Yamada、Shigeru Kuwata
DOI:10.1246/bcsj.61.4161
日期:1988.11
Asymmetric induction during the aminolysis of 5(4H)-oxazolones from N-benzoyl amino acids was investigated using a series of amino acid esters as amine nucleophiles. The reaction of the oxazolone from N-benzoyl-DL-t-Meucine with methyl L-prolinate was found to produce the diastereomeric DL isomer, almost specifically, under appropriate conditions.
使用一系列氨基酸酯作为胺亲核试剂研究了从 N-苯甲酰氨基酸氨解 5(4H)-恶唑酮的过程中的不对称诱导。发现来自 N-苯甲酰基-DL-t-Meucine 的恶唑酮与 L-脯氨酸甲酯的反应几乎特别是在适当条件下产生非对映异构 DL 异构体。