82448-57-5Relevant academic research and scientific papers
Synthesis of 1,2,6-Trihydroxy-7,8-dimethoxy-3-methylanthraquinone
Malhotra, S.,Misra, K.
, p. 27 - 29 (2007/10/02)
A new anthraquinone, 1,2,6-trihydroxy-7,8-dimethoxy-3-methylanthraquinone (I) has been synthesised by condensing 5-hydroxy-3,4-dimethoxyphthalic anhydride (III) with 3-methylcatechol (IV) in the presence of anhyd. aluminium chloride, followed by cyclisation of the resultant o-benzoylbenzoic acid derivative, 2',3',5-trihydroxy-3,4-dimethoxy-4'-methyl-2-benzoylbenzoic acid (II), with sulphuric acid containing boric acid.
