A detailed investigation of the preparation of 2,7-diaminosuberic acid and 2,5-diaminoadipic acid derivatives using Kolbe electrolysis
作者:Johann Hiebl、Michael Blanka、Andras Guttman、Hermann Kollmann、Kornelia Leitner、Günter Mayrhofer、Franz Rovenszky、Karin Winkler
DOI:10.1016/s0040-4020(97)10412-4
日期:1998.3
The yield of protected 2,7- diaminosuberic acid (DAS) prepared by Kolbe reaction of N-protected α-glutamic acid esters is dependent on solvent, temperature, concentration of carboxylate anion, and protecting groups. The highest yield of protected L,L-2,7-diaminosuberic acid is obtained with Boc-Glu-OMe as starting material using MeOH/pyridine/NaOMe as electrolyte.
通过N-保护的α-谷氨酸酯的Kolbe反应制备的被保护的2,7-二氨基硫酸(DAS)的产率取决于溶剂,温度,羧酸根阴离子的浓度和保护基团。以Boc-Glu-OMe为起始原料,以MeOH /吡啶/ NaOMe为电解质,得到最高的保护的L,L -2,7-二氨基丁二酸。