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Chemical shift non‐equivalence of the isopropyl methyl groups of two 10‐isopropoxyergoline‐8β‐methanol derivatives
Author(s) -
Vigevani Aristide
Publication year - 1974
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270060915
Subject(s) - isopropyl , methanol , equivalence (formal languages) , chemistry , chemical shift , stereochemistry , medicinal chemistry , organic chemistry , mathematics , pure mathematics
The chemical shift non‐equivalence values (about 1 ppm) of the isopropyl methyl groups in the 1 H and 13 C NMR spectra of the compounds having structure 1 is interpreted as due to the existence of a highly preferred conformation.