Search International and National Patent Collections

1. (WO2017151530) PROCESS FOR THE PREPARATION OF 4-ALKOXY-3-HYDROXYPICOLINIC ACIDS

Pub. No.:    WO/2017/151530    International Application No.:    PCT/US2017/019801
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: A01N 47/00
A01N 47/02
A01N 47/06
C07D 213/78
C07D 213/79
C07D 213/803
Applicants: DOW AGROSCIENCES LLC
Inventors: HANLEY, Patrick S.
CHOY, Nakyen
SIDDALL, Thomas L.
WHITEKER, Gregory T.
Title: PROCESS FOR THE PREPARATION OF 4-ALKOXY-3-HYDROXYPICOLINIC ACIDS
Abstract:
4-Alkoxy-3-hydroxypicolinic acids may be conveniently prepared from 2-hydroxypicolinonitrile in a series of chemical steps selected from chlorination, chloro substitution, nitrile hydrolysis and chloro reduction.