Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24988
Title: Electron impact mass spectral fragmentation of chiral bisbenzoxazole, bisbenzothiazole and biscarbamide derivatives of 2,2-dimethyl-1,3-dioxolane
Authors: Xu, J
Jiao, P
Deng, D
Zhang, Q
Tsang, CW
Chan, ASC
Issue Date: 2002
Source: Rapid communications in mass spectrometry, 2002, v. 16, no. 12, p. 1174-1179
Abstract: The mass spectrometric fragmentation behaviour of five pairs of (R,R)- and (S,S)-4,5-bis(benzoxazol2-yl)-2,2-dimethyl-1,3-dioxolane derivatives, one pair of (R,R)- and (S,S)-4,5-bis(benzothiazol-2-yl)2,2-dimethyl-1,3-dioxolanes, and three pairs of (R,R)- and (S,S)-N,N′-bis(2-hydroxyaryl)-2,2dimethyl-1, 3-dioxolane-4,5-dicarbamides, all important compounds for asymmetric catalysis (P. Jiao et al., Tetrahedron Asymmetry 2001; 12: 3081), has been studied with the aid of mass-analyzed ion kinetic energy spectrometry and accurate mass measurements under electron impact ionization conditions. The spectral observations have been rationalized in terms of fragment ion structures and fragmentation mechanisms that will provide an aid to spectral interpretation for new compounds of this type.
Publisher: John Wiley & Sons
Journal: Rapid communications in mass spectrometry 
ISSN: 0951-4198
EISSN: 1097-0231
DOI: 10.1002/rcm.695
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