您的位置: 首页 > 农业专利 > 详情页

PROCESS FOR THE PREPARATION OF 4-AMINO-3-CHLORO-5-FLUORO-6- (Substituted) picolinate S
专利权人:
DOW AGROSCIENCES LLC
发明人:
KIM E. ARNDT,JAMES M. RENGA,YUANMING ZHU,GREGORY T. WHITEKER,CHRISTIAN T. LOWE
申请号:
BR102012001636
公开号:
BR102012001636A2
申请日:
2012.01.24
申请国别(地区):
BR
年份:
2015
代理人:
摘要:
Process for the preparation of 4-amino-3-chloro-5-fluoro-6- (substituted) picolinates. The present invention relates to 4-amino-3-chloro-5-fluoro-6- (substituted) picolinates which are conveniently prepared from 3,4,5,6-tetrachloropicolinonitrile by a series of steps involving fluorine exchange. , amination, halogen exchange and hydrolysis, esterification and coupling assisted by transition metals.Processo para a preparação de 4-amino-3-cloro-5-fluoro-6-(substituidos)picolinatos . A presente invenção refere-se a 4-amino-3-cloro-5-fluoro-6-(substituidos)picolinatos que são convenientemente preparados a partir de 3,4,5,6-tetracloropicolinonitrila mediante uma série de etapas envolvendo troca de flúor, aminação, troca de halogênios e hidrólise, esterificação e acoplamento assistido por metais de transição.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充