Shen Zong-xuan
2002
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0
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Journal
Journal of Suzhou University Natural Science
Abstract
Leuco crystal violet lactone(LCVL) was prepared by the reaction of p-dimethyl-aminobenzaldehyde ? N,N-dimethylaniline and m-dimethylamino-benzoic acid with urea catalyzed by acid. The oxidation of LCVL by oxidizing agents such as hydrogen peroxide affords crystal violet lactone(CVL).The total yield is about 54%.The effects of the temperature ,the reactant ratio,and the catalyst used on the reaction were discussed.