Synthesis of open chain analogue of 1,8-dioxooctahydroxanthene catalyzed by aluminosilicate MCM- 41


1 Department of Chemistry, Mahshahr Branch, Islamic Azad University, Mahshahr 63519, Iran

2 Department of Chemistry, Khouzestan Science and Research Branch, Islamic Azad University, Ahvaz, Iran


In this study, aluminosilicate MCM-41 has been found to be an efficient catalyst for reaction between
different benzaldehyde derivatives and 5,5-dimethyl-1,3-cyclohexanedione to give open chain analogue of
1,8-dioxo-octahydroxanthene in excellent yields. No evidence for the formation of cyclization products was
observed. The catalyst can be used several times after recovery.


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