3,6-DIHYDROXYXANTHONE synthesis
- Product Name:3,6-DIHYDROXYXANTHONE
- CAS Number:529-61-3
- Molecular formula:C13H8O4
- Molecular Weight:228.2
Yield: 45%
Reaction Conditions:
with phosphotungstic acid for 0.0666667 h;Microwave irradiation;Green chemistry;regioselective reaction;Reagent/catalyst;
Steps:
General Procedure for the Preparation of Xanthone and Thioxanthone Derivatives
General procedure: To a mixture of phenols derivatives (1 mmol) and salicylic acid/ thiosalicilic acid derivatives (1 mmol) were added heteropoly acid (0.05 mmol). The homogenized mixture was placed in vessel microwave and was irradiated in the microwave oven within 4 min. The reaction mixture was allowed to cool, poured into ethyl acetate and extracted with a sat. aq solution of NaHCO3 (3*15 ml). The organic layer was dried over Na2SO4 and evaporated in vacuum to give an impure residue. Chromatography of the crude products was performed on a column of silica gel eluted with n-hexane/EtOAc, to give pure crystalline products. The products were characterized by comparison of their NMR, IR, MS. The spectral data is given below.
References:
Nasseri, Mohammad A.;Alizadeh, Somayyeh;Zakerinasb, Batol;Beni, Alireza Salimi [Letters in Organic Chemistry,2014,vol. 11,# 5,p. 338 - 344]
244121-75-3
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