Reaction of a serine-derived organozinc reagent with chloroformates and ethyl oxalyl chloride under palladium catalysis. Preparation of protected (2S, 6S)-4-oxo-2,6-diaminopimelic acid and (2S)-4-oxoglutamic acid
作者:Richard F. W. Jackson、Neil Wishart、Martin J. Wythes
DOI:10.1039/c39920001587
日期:——
Organozinc reagent 1 reacts with phenyl chloroformate under palladium catalysis to give the protected 4-oxo-2,6-diaminopimelic acid derivative 3, derived by formal displacement of both chloride and phenoxide; the symmetrical ketone 3, together with protected 4-oxoglutamic acid 10, are formed when ethyl oxalyl chloride is used as substrate.
有机锌试剂1在钯催化下与氯芳香酯反应,生成保护的4-氧基-2,6-二氨基庚二酸衍生物3,该衍生物通过正式取代氯和酚氧根而获得;当乙基草酰氯作为底物时,形成对称酮3,以及保护的4-氧谷氨酸10。