作者:Zbigniew Dabroswki、Jerzy T. Wróbel、Giovanni D. Andreetti
DOI:10.1016/0022-2860(86)85036-0
日期:1986.7
only one isomer the stereochemistry of which is established on the basis of X-ray analysis of its N -benzyl derivative. The second method, is based on the reaction of Meldrum's acide with imidoether salts, leads finally to the formation of two isomers, one of which is identical with the isomer obtained in the first procedure. 1 H NMR spectral analysis establishes the stereochemistry of 5,6,-disubstituted
摘要 已研究出两种独立的合成6-碳甲氧基甲基-5-甲基哌啶-2-one的方法;利用丙醛的烯胺反应仅产生一种异构体,其立体化学是基于其 N-苄基衍生物的 X 射线分析建立的。第二种方法基于 Meldrum 酸与亚胺醚盐的反应,最终导致形成两种异构体,其中一种与第一种方法中获得的异构体相同。1 H NMR 光谱分析确定了 5,6,-二取代哌啶-2-酮的立体化学。