ChemInform Abstract: Two-Dimensional NMR Studies of Marine Natural Products. Part 4. Isolation of the Cembranoid Diterpene Jeunicin from the Mollusc Planaxis sulcatus: Assignment of the Proton and Carbon NMR Spectra by Two-Dimensional Techniques.

1986 ◽  
Vol 17 (47) ◽  
Author(s):  
R. SANDUJA ◽  
G. S. LINZ ◽  
M. ALAM ◽  
A. J. WEINHEIMER ◽  
G. E. MARTIN ◽  
...  
Keyword(s):  
Natural Products ◽  
Marine Natural Products ◽  
Nmr Spectra ◽  
Two Dimensional ◽  
Nmr Studies ◽  
Planaxis Sulcatus

Synthesis and NMR Studies of Some Steroidal Isoxazoles

1992 ◽  
Vol 47 (6) ◽  
pp. 891-897 ◽  
Author(s):  
Sergio Giacopello ◽  
Mónica E. Deluca ◽  
Alicia M. Seldes
Keyword(s):  
Nmr Spectra ◽  
Two Dimensional ◽  
Model Compounds ◽  
Nmr Studies ◽  
Reaction Conditions ◽  
Related Model ◽  
H Nmr ◽  
Short Synthesis ◽  
Nmr Methods ◽  
C Nmr

A short synthesis of 17α-pregna-2,4-dien-[2,3-d]isoxazol-17β-ol (1) is described using mild reaction conditions and with a high overall yield. The equilibrium between keto-enolic forms has been studied by 1H NMR methods. Complete assignments of all the resonances in the 1H and 13C NMR spectra of Danazol have been made using a variety of one and two-dimensional correlation methods. 13C NMR spectra of all the intermediate and related model compounds were also assigned.

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