Sulfuric Acid → HCID 19926674, compound
Reaction equation
[O:1]=[C:2]1[C:15]2[CH:14]=[C:13]([C:16]([OH:18])=[O:17])[CH:12]=[CH:11][C:10]=2[C:9](=[O:19])[C:8]2[C:3]1=[CH:4][C:5]([OH:20])=[CH:6][CH:7]=2.S(=O)(=O)(O)O.[C:26](OC(=O)C)(=[O:28])[CH3:27]>>[C:26]([O:20][C:5]1[CH:4]=[C:3]2[C:8]([C:9](=[O:19])[C:10]3[CH:11]=[CH:12][C:13]([C:16]([OH:18])=[O:17])=[CH:14][C:15]=3[C:2]2=[O:1])=[CH:7][CH:6]=1)(=[O:28])[CH3:27]Participants
4
Procedure
9,10-Dihydro-9,10-dioxo-7-hydroxyanthracene-2-carboxylic acid (36.39 g) was suspended in glacial acetic anhydride (364 ml). Concentrated sulphuric acid (5 ml) was added and the mixture was stirred magnetically at 110°±5° C. for 6 hours in a heating mantle.
Sources & evidence
- ORD record
- ord-ab16baf1497447bea5a96f369a96cdef
- Source dataset
- uspto-grants-1995_07
- Patent number
- US05430067
Reaction notes
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