The mass spectra of a number of the epimeric 1,2-dimethyl-4-alkyl-4-hydroxydecahydroquinolines (alkyl: C z C H , CH=CH,, C,H, and COCH,) have been studied. The configuration at C-2 and C-4 in these molecules is proposed on the basis of the data obtained. Some aspects of the fragmentation pathways un
Mass spectrometric synthesis. 1—the reaction of catechol with 2,4-dimethyl-2,3-pentadiene
✍ Scribed by Gianni Podda; Antonio Maccioni; Umberto Vettori; Sergio Daolio; Pietro Traldi
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 236 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1076-5174
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The configuration at C-2 and C-4 in the molecules of 2-methyl-and 1,2-dimethyl-4-vinylethinyl(n-butyl)-4-hydroxyperhydroquinolines was determined by mass spectrometry The principal conclusions concerning the stereochemistry were made on the basis of differences in the values of the I[H-151+/I[xl+.,
The photooxygenation of 2,4-dimethyl-1,3-pentadiene (1) path, leading to the allylic hydroperoxide 3) are explained by competition between a concerted and a perepoxide was investigated in seven polar and nonpolar solvents by oxygen-uptake measurements. The overall deactivation rate mechanism. In all