WHITEKER GREGORY T,ARNDT KIM E,RENGA JAMES M,ZHU YUANMING,LOWE CHRISTIAN T,SIDDALL THOMAS L,PODHOREZ DAVID E,ROTH GARY ALAN,WEST SCOTT P
申请号：
ZA201305578
公开号：
ZA201305578B
申请日:
2013.07.23
申请国别(地区):
ZA
年份:
2014
代理人:
摘要：
4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
