12-(2-fluorophenyl)-benzo [h][1,3] methylenedioxy [4,5-b] acridine-10,11-diketone and synthesis method thereof
A methylene dioxy and synthetic method technology is applied in the field of acridone derivatives and achieves the effects of easy availability of raw materials, simple operation and good absorption
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Embodiment 1
[0017] Put 1.37g of 3,4-methylenedioxyaniline, 1.24g of 2-fluorobenzaldehyde, 1.74g of 2-hydroxy-1,4-naphthoquinone and 0.2g of p-toluenesulfonic acid in a 50mL reaction flask and mix well , heated and stirred, and the temperature was controlled at 115°C. After reacting for 5 hours, the reaction mixture was dissolved with 20mL of dichloromethane, washed twice with 20mL of water, dried over anhydrous sodium sulfate, evaporated to remove the solvent, washed twice with 20mL of ethanol, and filtered to obtain orange The red corresponding product 12-(2-fluorophenyl)-benzo[ h ][1,3] Methylenedioxy[4,5- b ] Acridine-10,11-dione 3.57g, the yield is 90%.
[0018] After testing, molecular formula: C 24 h 14 NO 4 , Molecular weight: 397.08, Appearance: orange-yellow solid, Melting point: 280-281°C;
[0019] IR (KBr): v 3069, 2921, 1682, 1541, 1462, 1435, 1259, 1207, 1170, 1033, 942, 861, 769cm -1 ;
[0020] 1 H NMR (400MHz, DMSO- d 6 ) δ : 8.83 (d, 1H, J = 7.6Hz, ArH), 8.0...
Embodiment 2
[0025] Put 6.85g of 3,4-methylenedioxyaniline, 6.82g of 2-fluorobenzaldehyde, 8.70g of 2-hydroxy-1,4-naphthoquinone and 1g of p-toluenesulfonic acid in a 100mL reaction flask and mix evenly. Heat and stir with the temperature controlled at 125°C. After 4 hours of reaction, the reaction mixture was dissolved in 100mL of dichloromethane, washed twice with 100mL of water, dried over anhydrous sodium sulfate, evaporated to remove the solvent, washed twice with 100mL of ethanol, and filtered to obtain orange-red The corresponding product 12-(2-fluorophenyl)-benzo[ h ][1,3] Methylenedioxy[4,5- b ] Acridine-10,11-dione 18.26g, the yield is 92%.
Embodiment 3
[0027] Put 13.70g of 3,4-methylenedioxyaniline, 12.4g of 2-fluorobenzaldehyde, 17.40g of 2-hydroxy-1,4-naphthoquinone and 2g of p-toluenesulfonic acid in a 250mL reaction flask and mix well. Heat and stir with the temperature controlled at 130°C. After reacting for 3 hours, dissolve the reaction mixture with 200mL of dichloromethane, wash twice with 200mL of water, dry over anhydrous sodium sulfate, evaporate the solvent, wash twice with 200mL of ethanol, and filter to obtain orange-red The corresponding product 12-(2-fluorophenyl)-benzo[ h ][1,3] Methylenedioxy[4,5- b ] Acridine-10,11-dione 34.94g, the yield is 88%.
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