scholarly journals β-D-galactopyranoside Seco-phytoporphyrin from Atropa Belladonna and Solanum Tuberosum Yellow Leaves Determined by Nuclear Magnetic Resonance

Author(s):  
Nina Djapic

The study described the isolation of β-D-galactopyranoside seco-phytoporphyrin from Atropa belladonna and Solanum tuberosum yellow leaves. Column chromatography was applied for its isolation. The UV-Vis, mass spectrometry and NMR spectroscopy were used for the structure confirmation. The results demonstrate that the two plants that the same chlorophyll catabolite structure.

1978 ◽  
Vol 33 (12) ◽  
pp. 1563-1564
Author(s):  
H. Parlar

Photoreactions of 2-exo-bromo-5,6,7,8,9,9- hexachloro-1,2,4 a, 5,8,8 a-hexahydro-5,8-methanonaphthaline (1) were studied in the presence of acetophenone. With the help of column chromatography an unusual isomerisation product (3) was isolated, whose structure was established by spectral data obtained by mass spectrometry, infrared spectroscopy, and 1H nuclear magnetic resonance measurements.


Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3283
Author(s):  
Miriam Pérez-Trujillo ◽  
Toby J. Athersuch

Nuclear magnetic resonance (NMR) spectroscopy remains one of the core analytical platforms for metabolomics, providing complementary chemical information to others, such as mass spectrometry, and offering particular advantages in some areas of research on account of its inherent robustness, reproducibility, and phenomenal dynamic range [...]


Biomolecules ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1516
Author(s):  
Lufeng Yan ◽  
Li Fu ◽  
Ke Xia ◽  
Shiguo Chen ◽  
Fuming Zhang ◽  
...  

The structure of heparosan capsular polysaccharide (CPS) has been determined using enzymatic digestion with nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry. Previous errors in the assignment of the glycolipid acceptor structure, from which heparosan is extended, have been corrected. The structure of heparosan CPS is GlcNAc α-1,[4GlcA β-1,4GlcNAc α-1,]n4GlcA β-1,[4Kdo β-2,7Kdo β-2,]0 or 14Kdo β-2,7Kdo β-2,4Kdo β-2,7Kdo β-2,4Kdo β-2,7Kdo β-2,4Kdo β-PG-I (C16:0 or C18:0) (where n is ~250 for a CPS of 100 kDa).


1981 ◽  
Vol 36 (1) ◽  
pp. 125-126 ◽  
Author(s):  
H. Parlar ◽  
Y. Inanici

Abstract Photoreactions of 1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-1,4-endo, endo-5,8-dimethano-naphthaline (1) were studied in acetone with wavelengths above 290 nm. With the help of column chromatography an unusual isomerisation product (4) could be isolated, whose structure was established by spectral data obtained by mass spectrometry infrared spectroscopy, 1H and 13C nuclear magnetic resonance measurements.


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