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Ralf Pfirmann

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Publication

Featured researches published by Ralf Pfirmann.

Archive | 1996

Process for producing quinazoline derivatives

Theodor Papenfuhs; Ralf Pfirmann; Stefan Krause; Doris Neumann-Grimm

Archive | 1998

Process for the preparation of 3,5-difluoroaniline

Ralf Pfirmann; Stefan Krause

Archive | 1998

Catalyst comprising an amidophosphonium salt for halex reactions

Sergej Pasenok; Wolfgang Appel; Ralf Pfirmann; Thomas Wessel; Thomas Schach; Hans Dr Schubert

Archive | 1998

Amidophosphonium-salt-containing catalyst for halogen-fluorine exchange reactions

Sergej Pasenok; Wolfgang Dr Appel; Ralf Pfirmann; Thomas Wessel; Thomas Schach; Hans Dr Schubert

Archive | 1992

2-Chloro-4,5-difluorobenzonitrile and process for preparation thereof.

Ralf Pfirmann; Theodor Papenfuhs

Archive | 1999

Process for preparing isochroman-3-ones

Holger Geissler; Ralf Pfirmann

Archive | 1995

Trifluorophenylene compounds, process for their preparation and their use in liquid crystalline mixtures

Rainer Wingen; Ralf Pfirmann

Archive | 1995

Substituted 2-chloro-3,4,5-trifluorobenzenes and a process for their preparation

Ralf Pfirmann; Thomas Schach

Archive | 1994

2,3-Difluoro-6-introbenzonitrile and 2-chloro-5,6-difluorobenzonitrile, process for their preparation and their use in the preparation of 2,3,6-trifluorobenzoic acid

Ralf Pfirmann; Theodor Papenfuhs

Archive | 1993

Process for the preparation of tetrafluorophthalic acid and/or tetrafluorophthalic anhydride

Ralf Pfirmann; Theodor Papenfuhs

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Collaboration

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Theodor Papenfuhs

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Klaus Forstinger

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Stefan Krause

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Thomas Wessel

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Thomas Schach

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Doris Neumann-Grimm

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Hans Dr Schubert

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Berthold Schiemenz

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Andreas Maier

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Marita Neuber

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