Electron impact mass spectra of 3,5,7-triaryl-and -trialkyl-4H-1,2-diazepines
β Scribed by Alexandru T. Balaban; Mircea D. Gheorghiu; Teodor Silviu Balaban
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 345 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A mass spectrometric identification and differentiation of pyrimidin-4(3H)-and -4(lH)-ones was carried out. NSubstitution at position 1 or 3 made the distinction of tbe two sets of compounds very easy because of their characteristic fragmentation pathways. Most interesting were the spectra of the N-
## Abstract The 70 eV electron impact mass spectra of some 1,3,4βthiadiazolo[3,2β__a__]pyrimidinβ7βone and isomericβ5βone derivatives are discussed with the aid of defocused metastable spectra and exact mass measurements. The compounds are shown to be very stable to electron impact and ring contrac