ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of Isomeric N-Methylated (2-Furyl)- and (2-Thienyl)-pyrazolecarboxylates and Their Structure Elucidation by Spectrometric MethodsAddition of excessive diazomethane to (2-furyl)propiolic acid and ethyl (2-thienyl)propiolate, respectively, yields all four possible N-methylated pyrazolecarboxylates. After separation by means of gas chromatography the structures of the isomers were elucidated by 1H-NMR and UV spectroscopy. The gaschromatographically determined ratios of the isomers are discussed.
    Notes: Bei der Addition von überschüssigem Diazomethan an (2-Furyl)propiolsäure bzw. an (2- Thienyl)propiolsäure-äthylester erhält man alle vier möglichen N-methylierten Pyrazolcarbonsäureester. Nach gaschromatographischer Trennung der Isomeren werden die Strukturen durch 1H-NMR- und UV-Spektrometrie zugeordnet. Die gaschromatographisch bestimmten Isomerenverhältnisse werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...