Ein einfacher Zugang zu Aminosäuren mit einer Diazofunktion in der Seitenkette ausgehend von Asparaginsäure
作者:Klaus Burger、Martin Rudolph、Horst Neuhauser、Manuel Gold
DOI:10.1055/s-1992-26324
日期:——
A Simple Approach to Amino Acids with a Diazo Function in the Side Chain Starting from Aspartic Acid [2,2-Bis(trifluoromethyl)-5-oxo-1,3-oxazolidin-4-yl]acetic acid chloride (2) and diazoalkanes react to give the amino acid derivatives 2,2-bis(trifluoromethyl)-4-(3-diazo-2-oxopropyl)-1,3-oxazolidin-5-ones 3. Compounds 3 are useful intermediates for the synthesis of various natural and nonnatural α-amino acids and their derivatives. The synthetic potential is demonstrated i.a. by syntheses of 2-amino-5-hydroxy-4-oxopentanoic acid and 2-amino-4-oxohexanoic acid derivatives.
从天冬氨酸[2,2-双(三氟甲基)-5-氧代-1,3-恶唑啉-4-基]乙酸氯化物 (2) 和重氮烷烃反应生成 2,2-双(三氟甲基)-4-(3-重氮-2-氧代丙基)-1,3-恶唑啉-5-酮 3 的氨基酸衍生物的简单方法。化合物 3 是合成各种天然和非天然δ-氨基酸及其衍生物的有用中间体。2-amino-5-hydroxy-4-oxopentanoic acid 和 2-amino-4-oxohexanoic acid 衍生物的合成证明了其合成潜力。