This paper reports a novel, simple, rapid and accurate method for determination of 4-CBA and p-TOL in purified terephthalic acid by capillary electrophoresis.
2
难分离的混合邻、对氯甲苯经氧化可制得混合邻、对氯苯甲酸。
Chlorobenzoic acids can be synthesized by oxidation of mixed chlorotoluene which was difficult to separate.
3
以对甲苯磺酸为催化剂,对二甲氨基苯甲酸和异丁醇为原料合成对二甲氨基苯甲酸异丁酯。
Isobutyl p-(dimethylamino) benzoate was synthesized by the esterification ofp-(dimethylamino)-benzoic acid with isobutanol using p-toluene sulfonic acid as the catalyst.