ISSN:
0030-493X
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
With the aid of isotope labeling and by substituent shifts, the relatively strong m/z 91 ion in the mass spectra of 7-chloro-2-methoxy-5-phenyl-3H-1,4-benzodiazepine and related compounds was shown to contain the 5-phenyl ring and the 3-CH2 group. Mechanisms involving the opening of the 7-membered ring and the migration of the phenyl ring from C-5 to C-3 are postulated for the formation of this ion. This rearrangement ion was also observed in the mass spectra of some 1-alkyl-7-chloro-1,3-dhydro-5-phenyl-2H-1,4-benzodiazepin-2-ones.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/oms.1210140502
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