logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9096570 B1

PDFFull Text
Date of Patent:
Aug. 04, 2015

Filed:

Nov. 13, 2009

Process for manufacturing substituted 3-pyridylmethyl ammonium bromides

Applicants:

Joachim Gebhardt, Wachenheim, DE;

Frederik Menges, Schriesheim, DE;

Michael Rack, Eppelheim, DE;

Michael Keil, Freinsheim, DE;

Jochen Schroeder, Lambsheim, DE;

Stefan Orsten, Ellerstadt, DE;

Helmut Zech, Bad Duerkheim, DE;

David Cortes, Quincy, IL (US);

Robert Leicht, Hannibal, MO (US);

Tony Yegerlehner, Palmyra, MO (US);

Rodney F. Klima, Quincy, IL (US);

Inventors:

Joachim Gebhardt, Wachenheim, DE;

Frederik Menges, Schriesheim, DE;

Michael Rack, Eppelheim, DE;

Michael Keil, Freinsheim, DE;

Jochen Schroeder, Lambsheim, DE;

Stefan Orsten, Ellerstadt, DE;

Helmut Zech, Bad Duerkheim, DE;

David Cortes, Quincy, IL (US);

Robert Leicht, Hannibal, MO (US);

Tony Yegerlehner, Palmyra, MO (US);

Rodney F. Klima, Quincy, IL (US);

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Brinks Gilson & Lione

Primary Examiner:

Venkataraman Balasubramanian

Int. Cl.
CPC ...
C07D 401/06 (2006.01); C07D 403/06 (2006.01); C07D 413/06 (2006.01); C07D 417/06 (2006.01); C07D 213/80 (2006.01); C07D 401/04 (2006.01);
U.S. Cl.
CPC ...
C07D 401/04 (2013.01); C07D 213/80 (2013.01); C07D 401/06 (2013.01); C07D 403/06 (2013.01); C07D 413/06 (2013.01); C07D 417/06 (2013.01);
Abstract

A process for manufacturing 5,6-disubstituted-3-pyridylmethyl ammonium bromides (I), wherein wherein the symbols have the meaning given in formula (I), with bromine in the presence of a radical initiator in a solvent mixture comprising an aqueous phase and an organic phase, where the organic phase comprises a solvent selected from 1,2-dichloroethane, chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene and tetrachloromethane, and where the pH-value of the aqueous phase is from 3 to <8, to obtain a 3-bromomethyl-5,6-disubstituted pyridine compound (III), wherein Y, Y, Z and Zhave the meanings given in formula (I), and

Find Patent Forward Citations

Gebhardt, Joachim. (2015). Process for manufacturing substituted 3-pyridylmethyl ammonium bromides (U.S. Patent No. 9096570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9096570

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…