摘要
以（R）-2-（4-羟基苯氧基）丙酸为原料,经醚化、酰氯化、酰胺化或酯化等步骤合成了22个2-（4-芳氧苯氧基）丙酸酯或2-（4-芳氧苯氧基）丙酰胺化合物（Ⅳa～v）,其结构经1HNMR、13CNMR、MS及EA表征。除草活性测试结果表明：在75 g/hm^2浓度下,大部分化合物对单子叶杂草具有选择性的除草活性,其中化合物Ⅳa、Ⅳc、Ⅳf、Ⅳg和Ⅳi对单子叶杂草（马唐、稗草、狗尾草）土壤处理和茎叶处理均具有100%的防除效果。
Twenty-two 2-（4-aryloxyphenoxy） propionic acid derivatives were designed and synthesized from（R）-2-（4-hydroxyphenoxy） propanoic acid by etherification, acylation, amidation or esterification. Their structures were characterized by 1 HNMR, （13）CNMR, HRMS and elemental analysis. The bioassay results indicated that most of compounds exhibited excellent herbicidal activity and selectivity against monocotyl-edonous weeds at the dosage of 75 g/hm^2. In particular, compounds Ⅳa, Ⅳc, Ⅳf, Ⅳg and Ⅳi exhibited 100% herbicidal efficiency in both pre-and postemergence treatments against Digitaria sanguinalis, Echinochloa crus-galli L and Setaria viridis.
作者
王春琴
刘祈星
WANG Chun-qin;LIU Qi-xing(College of Biological and Pharmaceutical Sciences, China Three Gorges University, }qchang 443002, Hubei, Chin)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2018年第7期1201-1207,共7页
Fine Chemicals
基金
湖北省教育厅科研项目(B2016024)
三峡大学人才科研启动基金(KJ2014B084)~~
