Citation: Xue Sen FAN, Yan Zhen LI, Xin Ying ZHANG, Xue Yuan HU, Jian Ji WANG. FeCl₃·6H₂O Catalyzed Reaction of Aromatic Aldehydes with 5, 5-Dimethyl-1, 3-cyclohexandione in Ionic Liquids[J]. Chinese Chemical Letters, ;2005, 16(7): 897-899. shu

FeCl₃·6H₂O Catalyzed Reaction of Aromatic Aldehydes with 5, 5-Dimethyl-1, 3-cyclohexandione in Ionic Liquids

School of Chemical and Environmental Sciences, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang 453007

Received Date: 16 August 2004

Fund Project: This work was financially supported by NNSFC (No. 20273019) and the Science Foundation of Henan Normal University for Young Scholars (No. 0307032).

The reaction of aromatic aldehydes 1 with 5, 5-dimethyl-1, 3-cyclohexandione 2 was investigated in this paper by using[bmim] [BF₄] as the reaction medium. It was found that when the reaction was carried out in the presence of catalytic amount of FeCl₃·6H₂O, xanthenediones 3 was obtained in high yields. On the other hand, when a combination of trimethylchlorosilane (TMSCl) and FeCl₃·6H₂O was employed as the catalyst, the reaction afforded ring-opening derivatives of xanthenediones 4 with high efficiency.
- FeCl₃·6H₂O,
- ionic liquids,
- xanthenedione,
- catalysis
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