S. Henkel, Β. Krämer, V. Jäger
Dec 1, 1997
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Abstract
Source of material: The title compound (alternative name: 3amino-3-deoxy-L-xylono-1,3-lactam; see réf. 1 ) was prepared by [2+2]-cycloaddition of (2/?)-2-0-benzyl-glyceraldehyde-A/-(4methoxyphenyl)imine (see refs. 2,3) with acetoxyacetylchloride in CH2Cl2/Et3N at 243 Κ (see ref. 1), followed by oxidative N-dearylation, saponification of the ester group and hydrogenolytic cleavage of the benzyl ether groups. The azetidin-2-one was crystallized from methanol.