HANLEY, Patrick S.,CHOY, Nakyen,SIDDALL, Thomas L.,WHITEKER, Gregory T.
申请号：
EP17760562
公开号：
EP3422855A4
申请日:
2017.02.28
申请国别(地区):
EP
年份:
2019
代理人:
摘要：
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.
