Determination of signs of long-range carbon-carbon coupling constants. The SPT-difference spectroscopy method

1976 ◽  
Vol 98 (4) ◽  
pp. 1041-1043 ◽  
Author(s):  
Svend A. Linde ◽  
Hans J. Jakobsen
Keyword(s):  
Long Range ◽  
Coupling Constants ◽  
Spectroscopy Method ◽  
Difference Spectroscopy

scholarly journals Long-range proton–carbon coupling constants for the determination of the stereochemical structure of organic compounds.

2021 ◽  
pp. 125-131
Author(s):  
Anwar, E. M. Noreljaleel
Keyword(s):  
Nmr Spectroscopy ◽  
Organic Compounds ◽  
Long Range ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Spectroscopy Method ◽  
Stereochemical Structure ◽  
New Methods ◽  
Spin Coupling Constants

A new methods for elucidating stereochemistry of organic compounds was developed on the basis of long-range proton–carbon coupling constants (2,3JC,H) and interpreting spin-coupling constants (3JH,H). Reaction of compound containing pyrin ring with nucleophile reagent was done to open the ring. HSQC-TOCSY experiments one of the new NMR spectroscopy method used to measure this values of spin-coupling constants and elucidating the stereochemistry of the product.

Determination of heteronuclear long-range coupling constants by soft-H,C-COSY

1988 ◽  
Vol 78 (2) ◽  
pp. 382-388 ◽  
Author(s):  
H Kessler ◽  
U Anders ◽  
G Gemmecker
Keyword(s):  
Long Range ◽  
Coupling Constants
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