由邻硝基甲苯制备邻卤代苯乙酸的新方法
New Method for Preparation of o-Halobenzeneacetic Acids from o-Nitrotoluene
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摘要: 研究从邻硝基甲苯出发制备卤代苯乙酸的方法。邻硝基甲苯草酸二乙酯缩合,水解,氧化得到邻硝基本乙酸,再进一步通过还原,重氮化、Sandmeyer反应得到邻卤代苯乙酸。Abstract: o- Nitrobenzeneacetic acid was prepared by condensation of o-nitrotoluene wlth dlethyl oxalate, hydrolysis and oxldation. It was further converted to o halobenzeneacetic acids by reduction, diazonation and Sandmeyer reaction. O halobenzeneacetic acids have been prepared from cheap raw material o-nitrotoluene with satisfactory results, a new method was prov1ded for preparing o halobenzeneacetic acids.
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