Ouyang Wen
2006
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0
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Journal
Applied Chemical Industry
Abstract
The effect of main factors from the synthesis of 2,3,4,4'-tetrahydroxybenzophenone on the yield of the reaction were studied,extraction and column chromatography have been adopted to isolate by-products and the structure have been identified by spectral analysis IR,~1H NMR,~(13)C NMR and EI-MS,etc.one major by-product which is colorless crystal have been isolated and identified namely p-hydroxyl benzoate,it was proved that the major by-products attributed to little alchohol in catalyst.