US 2016/0355468 A1 · PROCESS FOR THE PREPARATION OF 4-AMINO-5-FLUORO-3-CHLORO-6-(SUBSTITUTED)PICOLINATES

Abstract

4-Amino-5-fluoro-3-chloro-6-(substituted)picolinates are prepared from trifluoroacetic acid, p-methoxyaniline, a C1-C4 alkyl propiolate and a substituted methylene amine by a series of steps.

Claims1

Dependent claims

A compound of Formula C

wherein
R2 represents C1-C4 alkyl.

Dependencies are inferred from the claim text.

Facts

Application

15/243,996Filed 23 Aug 2016

Priority

13 Dec 2012

Published

8 Dec 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

C07D 213/79
Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals: acids; Esters
C07C 251/12
To carbon atoms of an unsaturated carbon skeleton: being acyclic
C07D 213/803
Acids; Esters: processes of preparation
C07D
Heterocyclic compounds

Family

Application61/736,841Us provisional application · filed 13 Dec 2012

Application14/104,127Division · filed 12 Dec 2013

Application15/040,577Division · filed 10 Feb 2016

Application15/243,996Division

US 2014/0171650 A1Published application

US 2016/0159742 A1Published application

US 9,260,392 B2Related patent

US 9,518,019 B2Related patent

US 2016/0355468 A1This patent

From the US filing history. Foreign family members aren’t listed.

Abstract

4-Amino-5-fluoro-3-chloro-6-(substituted)picolinates are prepared from trifluoroacetic acid, p-methoxyaniline, a C1-C4 alkyl propiolate and a substituted methylene amine by a series of steps.

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

Life of this patent

Abstract

Claims1

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

Life of this patent

Abstract

Claims1