ZHU, YUANMING,WHITEKER, GREGORY, T.,RENGA, JAMES, M.,ARNDT, KIM, E.,ROTH, GARY, ALAN,PODHOREZ, DAVID, E.,WEST, SCOTT, P.
申请号：
SG2013056171
公开号：
SG192101A1
申请日:
2012.01.24
申请国别(地区):
SG
年份:
2013
代理人:
摘要：
4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
