微波促进二氯菊酸甲酯的水解新工艺研究  

Hydrolizating methyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclo-propanecarboxylate by microwave

作　　者：张漪[1] 崔建兰[1] 唐昌盛[1] 郭文龙[1] 

机构地区：[1]中北大学化学工程系,山西太原030051

出　　处：《应用化工》2006年第11期861-863,共3页Applied Chemical Industry

摘　　要：采用微波技术对二氯菊酸甲酯在NaOH溶液中水解为二氯菊酸工艺进行了研究。结果表明,微波促进下最佳水解条件为:反应温度90℃,功率100 W,反应时间10 m in,物质的量比n(二氯菊酸甲酯)∶n(C2H5OH)∶n(NaOH)=1∶4∶1.5,重结晶后收率高达99.6%。与传统条件相比,时间缩短30倍,收率提高24.6%,无水乙醇用量减少60%,NaOH用量减少17%。并用红外光谱和熔点对二氯菊酸进行表征。By microwave technology, methyl 3- （ 2,2-dichlorovinyl ） -2,2-dimethylcyclopropanecarboxylate was hydrolyzed to DV-chrysanthemic acid with sodium hydroxide solution. The results show that the opti- mum hydrolysis condition were that ： with n （ methyl 3- （2,2-dichlorovinyl） -2,2-dimethylcyclopropanecarboxylate） ： n（anhydrousethanol） ： n（ sodium hydroxide） = 1 ： 4： 1.5, reacting at 100 W and 90℃ for 10 rain, DV-chrysanthemic acid has the yield of 99.6% by recrystalization. In comparison with traditional condition, time was shortened by 30 times, the yield was incrcased by 24.6%, amount of anhydrous ethanol was decreased by 60% ,amount of sodium hydroxide was reduced by 17% ,the product was characterized by IR spectrum and melting point.

关 键 词：二氯菊酸甲酯 二氯菊酸 微波 水解 

分 类 号：TQ031.5[化学工程]