MASS-SPECTRA OF 1,2,4-OXADIAZOLE-5-THIONES AND 1,2,4-THIADIAZOLE-5-ONES
SPECTROSCOPY LETTERS, vol.25, no.7, pp.1079-1088, 1992 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 25 Issue: 7
- Publication Date: 1992
- Doi Number: 10.1080/00387019208018217
- Journal Name: SPECTROSCOPY LETTERS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.1079-1088
- Bursa Uludag University Affiliated: No
Abstract
The mass spectra of 3,4-disubstituted-1,2,4-oxadiazole -5(4H)-thione and 3,4-disubstituted-1,2,4-thiadiazole-5(4H) -ones have been studied. The rearrangement of molecular ion of 1,2,4-oxadiazole-5-thiones to 1,2,4-thiadiazole-5-ones was proposed. Some major fragments observed in the spectra were interpreted and the fragmentation patterns involving McLafferty rearrangements were reported.