Journal ArticleDOI
An NMR Technique for Carbon-5 Configurations in 6-Keto-Δ -Steroids
TLDR
In this article, the C-7 proton was used to assess the allylic coupling to the C -5 proton in enol acetates, and the configuration at C-5 in the initial ketone was preserved in the enolacetate, if split into a doublet, then the configuration was α; if a singlet, then it was β.About:
This article is published in Steroids.The article was published on 1974-04-01. It has received 2 citations till now. The article focuses on the topics: Enol & Ketone.read more
Citations
More filters
Journal ArticleDOI
Fe(II)‐Induced Fragmentation Reaction of γ‐Hydroperoxy‐α,β‐enones. Part 1. Synthesis of 13(14→8)‐abeo‐Steroids
TL;DR: In this article, some steroidal analogues embodying the 13(148)-abeo skeleton have been synthesized by Fe(II)-induced rearrangement (tandem β-fission/reductive alkylation) of 14α-hydroperoxy-7-en-6-ones.
References
More filters
Journal ArticleDOI
The stereospecificity of carbanion reduction processes
D. H. R. Barton,C. H. Robinson +1 more
Journal ArticleDOI
Zur Synthese des Ecdysons IX. Mitteilung über Insektenhormone
Andre Furlenmeier,Andre Furlenmeier,Andor Furst,Andor Furst,A. Langemann,A. Langemann,Guy Waldvogel,Guy Waldvogel,P. Hocks,P. Hocks,U. Kerb,U. Kerb,Rudolf Prof Wiechert,Rudolf Prof Wiechert +13 more
TL;DR: In this article, a synthesis of ecdysone is described by which the insect moulting hormone can be readily prepared and the side chain was introduced by a Grignard reaction with 2-methyl-3-butyn-2-ol tetrahydropyran-2yl ether and a subsequent reduction of the triple bond.
Journal ArticleDOI
A re-evaluation of the steric dependence of allylic coupling constants
G.P. Newsoroff,Sever Sternhell +1 more
Journal ArticleDOI
Über einige Eigenschaften von 6‐Keto‐δ7‐Steroiden
TL;DR: In this article, the ORD-, UV- and NMR-spectra of 6-keto-δ7-steroids are discussed and it is shown that there exists a correlation between the configuration of rings A/B and the position of the maxima of the ODE.
Related Papers (5)
13C NMR studies on licodione and related compounds in equilibrium mixture of keto and enol forms
Shin-ichi Ayabe,Tsutomu Furuya +1 more
NMR study of the keto-enol equilibrium of ethyl γ,γ,γ-trifluoroacetoacetate and its reaction with water and alcohols
N.m.r. studies of the keto–enol tautomerism of acylthioacetamides
G. Klose,E. Ludwig,E. Uhlemann +2 more