Patent · US Active

Process for preparing 4-hydroxypyridines

US8716487B2 · kind B2 · utility

3Cited by

0References

14Claims

0Family size

Assignee

BASF SE

Inventors

Volker Maywald · Ludwigshafen, DE
Frederik Menges · Schriesheim, DE
Uwe Josef Vogelbacher · Ludwigshafen, DE
Michael Rack · Eppelheim, DE
Michael Keil · Freinsheim, DE
Wassilios Grammenos · Ludwigshafen, DE
Marianna Vrettou-Schultes · Mannheim, DE
Jan Klaas Lohmann · Lambsheim, DE
Bernd Mueller · Ludwigshafen, DE
Thorsten Jabs · Ludwigshafen, DE

Key dates

Filing date	Jun 20, 2011
Grant date	May 6, 2014
Priority date	—
Expiry date	Jun 20, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D213/61
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing 4-hydroxypyridines of formula Iwherein R1, R2, R3 and R4 have the meanings defined in the description.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.