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Diethylaminoethyl aryloxyacetates are prepared efficiently in 75~95% yields bycondensation of the corresponding aryloxyacetic acids with 2-diethylaminoethanol in the presenceof catalytic amount of solid superacid SO4 /Fe2O3. 2-
Diethylaminoethyl aryloxyacetates are prepared efficiently in 75-95% yields by condensation of the corresponding aryloxyacetic acids with 2-diethylaminoethanol in the presence of catalytic amount of solid superacid SO4 / Fe2O3. 2-