Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Helvetica Chimica Ac...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Helvetica Chimica Acta
Article . 1960 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
https://dx.doi.org/10.1002/hlc...
Article
Data sources: Microsoft Academic Graph
 View all 1 versions
Claim

Die absolute Konfiguration des (−)‐Epicatechins

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1960 English Publisher:WileyJournal:Helvetica Chimica Acta, volume 43, pages 1,274-1,279 (issn: 0018-019X, eissn: 1522-2675, Copyright policy )
Authors: A. Züst; F. Lohse; E. Hardegger;

doi: 10.1002/hlca.19600430512

Die absolute Konfiguration des (−)‐Epicatechins

Abstract

AbstractErschöpfende Ozonisierung von (−)‐Epicatechin und Reduktion der optisch aktiven Ozonisierungsprodukte führte zu 2‐Desoxy‐D‐xylit, welcher als Tetraphenylurethan in reiner Form isoliert, charakterisiert und identifiziert wurde. Der von D‐Glycerinaldehyd sterisch eindeutig abgeleitete 2‐Desoxy‐D‐xylit enthält die beiden asymmetrischen C‐Atome 2 und 3 des (−)‐Epicatechins in unveränderter Konfiguration. Für (−)‐Epicatechin folgt daraus zwingend die absolute Konfiguration gemäss Formel I, wie sie erstmals von K. FREUDENBERG u. a. durch vergleichende Betrachtung von Drehungsverschiebungen aus der Ephedrin‐ und Mandelsäure‐Reihe abgeleitet wurde.

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 11
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    		 Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    		 Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
11
Average
Top 10%
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!
uploadUpload now