## New Mass Spectra Mass Spectra of Some Secondary 2-Furancatrbothioamides Thioamides are generally known to rearrange under electron impact (EI) more readily than their oxygen analogues. This may be attributed to the bulkiness of the sulphur atom and its capacity to localize the charge and to use
Mass spectra of some 2-thiophenecarbothioamides
✍ Scribed by Tadeusz Jagodziński
- Book ID
- 118285530
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 195 KB
- Volume
- 23
- Category
- Article
- ISSN
- 1076-5174
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📜 SIMILAR VOLUMES
## Al&act -The acetylation of 2-krovalerylthiophene has been studied. Condensation of P-acetylthiopene with ethyl acetate afforded 2-thenoylacetone, which reacted with acrylate ester (Michael condensation). Ureidomethylent+2-thenoylacetone was prepared and cyclized to the Qhenoylpyrimidine. Mass s
both the first and second field-free regions, and assignments were confirmed by high-resolution accurate mass measurement. The main fragmentation reactions occurring are shown in Scheme 1. The mass-to-charge ratios and relative abundances of characteristic ions are listed in Table 1, and the complet