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 determination of the configuration of 2-methyl-and 1,2-dimethyl-4-vinyl-ethinyl(n-butyl)-4-hydroxyperhydroquinolines
β Scribed by N. S. Wulfson; A. A. Bakaev; V. G. Zaikin; A. A. Akhrem; L. I. Ukhova; A. P. Marochkin; G. V. Bludova
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 353 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1076-5174
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β¦ Synopsis
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+., IIH-l,~+/I~ar~+.. I[l-n31+/I[ar~+. and IIM-,,~+/I[y~+. ratios in the mass spectra of the epimeric vinylethinylic alcohols, and of the I ~x -l s ~+ / I ~x l + . and I~M-s,l+/I~arl+. ratios in the case of the n-butylic alcohols CONTINUING work on the mass spectrometric determination of the configuration of the 4-substituted 2-methyl-4-hydro~yperhydroquinolines,~ we studied the mass spectra of the 2-and 4-epimers of 1,2-dimethyl-(IIIa to IIIc) and 2-methyl-4-vinylethinyl-4-
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