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CAS No. : | 476-66-4 | MDL No. : | MFCD00006914 |
Formula : | C14H6O8 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | AFSDNFLWKVMVRB-UHFFFAOYSA-N |
M.W : | 302.19 | Pubchem ID : | 5281855 |
Synonyms : |
Gallogen;Elagostasine;HSDB 7574;CCRIS 774;Benzoaric acid;Alizarine Yellow;TBBD;Lagistase
|
Chemical Name : | 2,3,7,8-Tetrahydroxychromeno[5,4,3-cde]chromene-5,10-dione |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
84% | With 3-chloro-benzenecarboperoxoic acid; for 10.0h; | Weigh 50g of gallic acid,Pour into a 500ml jar after drying,Then added 25% concentrated ammonia water 250ml,Plug the bottle with a stopper,Stir in a constant temperature water bath at 50 C for 12 h.The reaction solution was then poured into a 1000 ml dry three-necked flask.60 g of m-CPBA was charged and reacted for 10 hours.After the reaction is over,Filter the reaction solution,The filter cake was dissolved in 10% NaOH solution.Put in 250g of activated carbon,Stirring at 35 C,Filtration, the filtrate was extracted three times with dichloromethane, the filtrate was separated, and the filtrate was adjusted to pH 2 with 10% hydrochloric acid.Crystallization, filtration, and drying to obtain pale yellow ellagic acid.Its yield was 84%. |