您的位置: 首页 > 农业专利 > 详情页

PROCESS FOR THE PREPARATION OF A QUINOLINE CARBOXYLIC ACID
专利权人:
发明人:
申请号:
EP12784277.1
公开号:
EP2780323B1
申请日:
2012.11.14
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
The invention provides a process for the preparation of a carboxylic acid of formula (IV) (which is useful as a safener for herbicides): wherein R1 is hydrogen or chlorine, comprising the steps of: (i) subjecting a compound of formula (V) wherein: R1 is as defined above and R2 is C1-C18 alkyl C1-C6 alkoxyC1-C8 alkyl- optionally substituted phenyl or optionally substituted benzyl to hydrolysis under acidic conditions to give a solution of a quinolinium salt and (ii) adding base to the solution obtained in step (i) to give the free carboxylic acid (IV). The invention also provides a solid (e.g. particulate) form of one quinoline carboxylic acid compound within formula (IV) defined by R1 being chlorine and novel intermediates useable in the above process.
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