Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Helmut Karn is active.

Publication


Featured researches published by Helmut Karn.


Archive | 1973

Improvement in the recovery of glyoxylic acid

Toni Dockner; Helmut Karn; Hermann Dr Spaenig


Archive | 1984

PROCESS FOR THE PREPARATION OF 1(2-HYDROXYETHYL)-2-METHYL-5-NITROIMIDAZOLE OF HIGH PURITY

Toni Dockner; Anton Frank; Helmut Karn


Archive | 1979

1-HYDROXYMETHYLIMIDAZOLES, THEIR PREPARATION AND USE AS CHEMICAL INTERMEDIATES

Toni Dockner; Anton Frank; Uwe Kempe; Matthias Wetzler; Helmut Karn


Archive | 1988

Process for the preparation of 1-alkyl imidazoles

Hermann Koehler; Toni Dockner; Helmut Karn


Archive | 1989

Preparation of p-nitrophenyl-imidazoles

Hermann Koehler; Klaus Ebel; Helmut Karn; Christof Dr. Taubitz


Archive | 1975

Production of 1-alkyl-5-nitroimidazoles

Anton Frank; Helmut Karn; Toni Dockner


Archive | 1989

Preparation of hexaarylbisimidazoles

Uwe Kempe; Toni Dockner; Helmut Karn; Thomas Dr Bluemel; Reinhold J. Leyrer; Thomas Loerzer


Archive | 1983

5-Substituted-4-methylimidazoles and process for their preparation.

Toni Dockner; Anton Frank; Uwe Kempe; Matthias Wetzler; Helmut Karn


Archive | 1980

Preparation of 5-hydroxymethylimidazoles

Uwe Kempe; Toni Dockner; Anton Frank; Helmut Karn


Archive | 1988

Preparation of 1-alkylimidazoles

Hermann Koehler; Toni Dockner; Helmut Karn

Collaboration


Dive into the Helmut Karn's collaboration.

Researchain Logo
Decentralizing Knowledge