A two‐dimensional NMR strategy for the complete  1 H chemical shift assignment of extended proton spin systems in triterpenoids | Zendy

Loganathan Duraikkannu | Zendy; Trivedi Girish K. | Zendy; Chary K. V. R. | Zendy

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A two‐dimensional NMR strategy for the complete 1 H chemical shift assignment of extended proton spin systems in triterpenoids

Author(s) -

Loganathan Duraikkannu,

Trivedi Girish K.,

Chary K. V. R.

Publication year - 1990

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260281104

Subject(s) - homonuclear molecule , chemistry , chemical shift , proton , nuclear overhauser effect , nuclear magnetic resonance spectroscopy , spectroscopy , triterpenoid , two dimensional nuclear magnetic resonance spectroscopy , proton nmr , lanthanide , carbon 13 nmr satellite , spin (aerodynamics) , nuclear magnetic resonance , stereochemistry , analytical chemistry (journal) , molecule , fluorine 19 nmr , organic chemistry , physics , thermodynamics , ion , quantum mechanics

An assignment strategy that utilizes one‐dimensional lanthanide‐induced methyl proton shifts, reported 13 C NMR data of model compounds and two‐dimensional 1 H and 13 C shift correlated spectroscopy, homonuclear proton chemical shift correlated spectroscopy and nuclear Overhauser enhancement spectroscopy methods was demonstrated to be effective for the complete 1 H chemical shift assignments of extended proton spin‐systems in a triterpenoid viz. , 3‐keto‐urs‐12‐en‐24‐oic acid methyl ester. Complete 13 C chemical shift assignments have also been accomplished.

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