N-Salicylideneglycyl Dipeptide Copper (II) 配合物羟甲基化的立体化学。动力学和热力学控制的反应
摘要:
(N-Salicylideneglycyl-L-valinato)铜(II)或(N-salicylideneglycyl-L-isoleucinato)铜(II)在相对温和的条件下在水溶液中用甲醛处理。在反应的早期发现所得丝氨酰残基为D-构型。然而,经过长时间的反应,构型从 D 型转变为 L 型。真正的(N-salicylideneglycyl-D-或L-seryl-L-isoleucinato)铜(II)的差向异构化反应在类似条件下进行。这些结果表明整个反应受到动力学和热力学的控制。
申请人:The Montefiore Hospital Association
of Western Pennsylvania
公开号:EP0182356B2
公开(公告)日:1998-08-05
Method of crystallizing aspartame
申请人:Ajinomoto Co., Inc.
公开号:EP0512435B1
公开(公告)日:1997-01-22
US5298648A
申请人:——
公开号:US5298648A
公开(公告)日:1994-03-29
Stereochemistry of Hydroxymethylations of<i>N</i>-Salicylideneglycyl Dipeptide Copper(II) Complexes. A Kinetically and Also Thermodynamically Controlled Reaction
epimerization reactions of authentic (N-salicylideneglycyl-D- or L-seryl-L-isoleucinato)copper(II) were carried out under similar conditions. These results indicate that the reaction as a whole is controlledkinetically as well as thermodynamically.
(N-Salicylideneglycyl-L-valinato)铜(II)或(N-salicylideneglycyl-L-isoleucinato)铜(II)在相对温和的条件下在水溶液中用甲醛处理。在反应的早期发现所得丝氨酰残基为D-构型。然而,经过长时间的反应,构型从 D 型转变为 L 型。真正的(N-salicylideneglycyl-D-或L-seryl-L-isoleucinato)铜(II)的差向异构化反应在类似条件下进行。这些结果表明整个反应受到动力学和热力学的控制。