2,4-二氯苯氧乙酸烃基二甲硅基甲酯的合成及其生物活性  

Study on Synthesis and Biological Activity of Alkyldimethylsilylmethyl 2,4Dichlorophenoxyacetate

作　　者：李新生[1] 李红[1] 吴拥军 王建黎 谢裕华 

机构地区：[1]南昌大学化学系

出　　处：《精细化工》1997年第6期46-50,共5页Fine Chemicals

摘　　要：以三甲基氯硅烷、烃基溴化镁和２，４二氯苯氧乙酸为原料，经氯化、格氏反应、亲核取代和脱氯化钾等步骤，合成了一类新型植物生长调节剂———２，４二氯苯氧乙酸烃基二甲硅基甲酯和２，４二氯苯氧乙酸二乙基甲硅基甲酯，其结构经元素分析、ＩＲ和１ＨＮＭＲ表征。生物活化试验表明，与母体化合物２，４二氯苯氧乙酸相比，使柑桔产量提高７％。We reported the synthesis of new plant growth regulators alkyldimethylsilylmethyl 2,4dichlorophenoxyacetate from trimethylchlorosilane,alkylmagnesium bromide and 2,4dichlorophenoxyacetic acid via cholrination,Grignard reaction,nucleophile substitution and elimination of potassium chloride.Their structure was characterized by IR, 1HNMR and elemental analysis.The experimental results of biological activity showed that oranges' yield was higher 7% than the unsilylsubstituted 2,4dichlorophenoxyacetic acid.

关 键 词：二氯苯氧乙酸 烃基 二甲硅基甲酯 

分 类 号：TQ452.021[化学工程—农药化工]