Optically active cis- and trans-1-chloro-2-methoxycarbonyl-2-methylcarbamoylaziridines. Stereochemical properties
摘要:
The synthesis of optically active cis- and trans-1-chloro-2-methoxycarbonyl-2-methylcarbamoyl-aziridines 2) is described and their relative stability determined by thermal equilibration. The crystal structure of (+/-)-cis-2 was determined by X-ray diffraction analysis and compared with that of (-)-trans-2. The chiroptical properties and configurational correlations with the parent compound (+)-1 - chloro-2,2-bismethoxycarbonylaziridine (1) are reported.
Structural characterization of (±)-N-chloro-2,2-bis(methoxycarbonyl)aziridine by X-ray crystallography and 2D NMR spectroscopy
作者:L. Antolini、A. Forni、I. Moretti、L. Schenetti、F. Prati
DOI:10.1039/p29920001541
日期:——
The X-ray crystal structure analysis for racemic N-chloro-2,2-bis(methoxycarbonyl)aziridine is reported. The complete assignments of the 1H, 13C and 17O chemical shifts are performed using 2DNMR techniques (C–H COSY, COLOC) to establish unequivocally the relative configuration of the aziridine.