Stereochemistry and ring opening of a carbocyclic analogue of a 1-oxapenam
作者:Demetrios Agathocleous、Graham Cox、Michael I Page
DOI:10.1016/s0040-4039(00)84333-6
日期:1986.1
The cycloaddition of succinimido ketene to 2,3-dihydrofuran yields P--succinimido bicyclo [3.2.0] 2-oxoheptan-6-one. This unusual stereochemistry is confirmed by 1H NMR and X-ray crystallography. The cyclobutanone product undergoes ringopening in concentrated hydrochloric acid to give 1-succinimido-5-chloro-2-pentanone.
琥珀酰亚胺基乙烯酮与2,3-二氢呋喃的环加成反应生成对-琥珀酰亚胺基双环[3.2.0] 2-氧杂庚烷6-1。这种异常的立体化学通过1 H NMR和X射线晶体学证实。在浓盐酸中使环丁酮产物开环,得到1-琥珀酰亚胺基-5-氯-2-戊酮。