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Substituent Increments for the 1 H‐NMR. Chemical Shifts of the 18‐ and 19‐Methyl Protons of Steroids. Part II: 9α,10β(normal)‐steroids
Author(s) -
Arnold Wolf,
Meister Walter,
Englert Gerhard
Publication year - 1974
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19740570610
Subject(s) - chemistry , substituent , chemical shift , androstane , spectral line , steroid , nmr spectra database , solvent , stereochemistry , medicinal chemistry , organic chemistry , physics , biochemistry , astronomy , hormone
In Part II of this series we report 292 substituent increments for the 1 H‐NMR. chemical shifts (solvent: CDCl 3 ) of the 18‐ and 19‐methyl protons of 9α,10β(normal)‐steroids relative to 5α,9α,10β,‐androstane. The increments were calculated by a least‐squares procedure from 988 spectra of 681 different steroids.