Electron-impact mass spectra of carbomethoxyl derivatives of cyclopropylthiophenes

1986 ◽  
Vol 35 (7) ◽  
pp. 1360-1364
Author(s):  
V. I. Kadentsev ◽  
N. G. Kolotyrkina ◽  
O. S. Chizhov ◽  
V. M. Shostakovskii ◽  
A. A. Vasil'vitskii ◽  
...  
Keyword(s):  
Electron Impact ◽  
Mass Spectra ◽  
Electron Impact Mass ◽  
Derivatives Of ◽  
Impact Mass

scholarly journals The Electron Impact Mass Spectra of 4-Hydroxy and 4-Methoxy Derivatives of 5,6-Dihydro-2-pyrones.

1977 ◽  
Vol 31b ◽  
pp. 671-678 ◽  
Author(s):  
Jørgen Møller ◽  
Torsten Reffstrup ◽  
Per M. Boll ◽  
H. Hope ◽  
A. Christensen ◽  
...  
Keyword(s):  
Electron Impact ◽  
Mass Spectra ◽  
Electron Impact Mass ◽  
Derivatives Of ◽  
Impact Mass

Fragmentation of isomeric dideoxy derivatives of 1,6-anhydro-β-D-hexopyranoses under electron impact

1981 ◽  
Vol 46 (10) ◽  
pp. 2390-2403 ◽  
Author(s):  
František Tureček ◽  
Tomáš Trnka ◽  
Miloslav Černý
Keyword(s):  
Electron Impact ◽  
Mass Spectra ◽  
Hydroxyl Group ◽  
Fragmentation Pattern ◽  
Positional Isomers ◽  
Deuterium Labeling ◽  
Stereochemical Assignment ◽  
Electron Impact Mass ◽  
Derivatives Of ◽  
Impact Mass

Electron impact mass spectra of all possible dideoxy derivatives of 1,6-anhydro-β-D-hexopyranoses and their sixteen specifically deuterium-labeled derivatives are reported. The spectra of positional isomers differ considerably making possible the reliable location of the hydroxyl group by mass spectrometry. The configuration of the hydroxyl group at C(2) and C(4) has only a negligible effect on the fragmentation pattern of stereoisomers. However, mass spectra of the C(3)-configurational isomers differ sufficiently to permit a stereochemical assignment. The fragmentation paths were elucidated by means of deuterium labeling and metastable spectra.

Electron Impact Mass Spectra of Some Unsaturated Derivatives of 2-Benzothiazoles

1998 ◽  
Vol 31 (7) ◽  
pp. 1395-1402 ◽  
Author(s):  
G. Karminski-Zamola ◽  
L. Fišer-Jakić ◽  
V. Tralić-Kulenovic ◽  
M. Bajić
Keyword(s):  
Electron Impact ◽  
Mass Spectra ◽  
Electron Impact Mass ◽  
Derivatives Of ◽  
Impact Mass

Electron impact mass spectra of per-O-acetyl derivatives of 4′-substituted glycopyranosylphenylamines

1988 ◽  
Vol 180 (1) ◽  
pp. 156-161 ◽  
Author(s):  
J.A. Cremata ◽  
A.J. Nún̄ez ◽  
E. Díaz ◽  
R. León ◽  
L.M. Alfonso
Keyword(s):  
Electron Impact ◽  
Mass Spectra ◽  
Electron Impact Mass ◽  
Derivatives Of ◽  
Impact Mass
Sign in / Sign up

Export Citation Format

Share Document