Substituent Increments for the 1H‐NMR. Chemical Shifts of the 18‐ and 19‐Methyl Protons of Steroids. Part I: 9β, 10α(Retro)‐Steroids
- 1 January 1974
- journal article
- research article
- Published by Wiley in Helvetica Chimica Acta
- Vol. 57 (6) , 1549-1558
- https://doi.org/10.1002/hlca.19740570609
Abstract
This paper reports 261 substituent increments for the 1HNMR. chemical shifts (solvent: CDCl3) of the 18‐ and 19‐methyl protons of 9β, 10α(retro)‐steroids relative to 5β,9β,10α,‐androstane. The increments were calculated by a least‐squares procedure from 1334 spectra of 759 different steroids.Keywords
This publication has 5 references indexed in Scilit:
- Substituent Increments for the 1H‐NMR. Chemical Shifts of the 18‐ and 19‐Methyl Protons of Steroids. Part II: 9α,10β(normal)‐steroidsHelvetica Chimica Acta, 1974
- Anisotropy of substituents on the proton resonance of C-18 and C-19 methyl groups. Evaluation by computer regressionSteroids, 1964
- Protonenresonanzspektrosopie und Steroidstruktur. II. Die Lage der C‐18‐ und C‐19‐Methylsignale in Abhängigkeit von den Substituenten am SteroidgerüstHelvetica Chimica Acta, 1962
- Protonenresonanzspektroskopie und Steroidstruktur I. Das C‐19‐Methylsignal in Funktion der SubstituentenHelvetica Chimica Acta, 1961
- Nuclear Magnetic Resonance Spectra of SteroidsJournal of the American Chemical Society, 1958