Patent · US Active

Process for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates

US8871943B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

DOW AGROSCIENCES LLC · US

Inventors

James M. Renga · Midland, US
Yang Cheng · Midland, US
Joseck M. Muhuhi · Midland, US
David E. Podhorez · Midland, US
Gary Roth · Midland, US
Scott P. West · Midland, US
Gregory T. Whiteker · Carmel, US
Yuanming Zhu · Carmel, US

Key dates

Filing date	Jul 23, 2013
Grant date	Oct 28, 2014
Priority date	—
Expiry date	Jul 23, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D213/803
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates comprising a step of converting chloropicolinoyl chlorides to fluoropicolinoyl fluorides.

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