PROCESS FOR THE PREPARATION OF ARYOXYACETIC ACID DERIVATIVES

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专利权人:

KOREA ADVANCED INSTITUTE OF SCIENCE & TECHNOLOGY

发明人:

PARK, SANG-WOO,LEE, BYONG-IL

申请号：

KR19890001644

公开号：

KR890001213(B1)

申请日:

1989.02.13

申请国别(地区):

韩国

年份:

1989

代理人:

摘要：

Title compds. (I)[R1=H, F, Cl; R2=H, Cl; R3=H, Cl, NO2; R4=H, Cl; R5=H, F; R6=(II) , useful as a herbicide, were prepd.. Thus, a mixt. contg. 200ml anhyd. trichloro ethylene and 8.6g ethylene urea was refluxed with 20.2g triethyl amine and 24g 2,5-dichlorophenoxy acetyl chloride for 2hrs to give 23.7g en-(2,5- dichlorophenoxy) acetylethylene urea.

来源网站：

中国工程科技知识中心

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http://www.ckcest.cn/home/