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9H-Thioxanthen-9-one, 3-bromo- synthesis
- Product Name:9H-Thioxanthen-9-one, 3-bromo-
- CAS Number:96407-89-5
- Molecular formula:C13H7BrOS
- Molecular Weight:291.16
![Thioxanthen-9-one](/CAS/GIF/492-22-8.gif)
492-22-8
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![9H-Thioxanthen-9-one, 3-bromo-](/CAS/20210111/GIF/96407-89-5.gif)
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Yield:96407-89-5 80%
Reaction Conditions:
with bromine;iron in chloroform at 5 - 20; for 12 h;
Steps:
7 Embodiment 7 3 - bromine saiton alkone preparation
In 1000 ml of three in the flask, add thioxanthones (63.6g, 300mmol), iron powder (0.84g, l5mmol) and chloroform (400 ml), ice bath (5 °C) peosthesis, the bromine (35 ml, 753mmo1) and 115 ml chloroform mixed solution added to a reaction solution in the slowly dropping, canada finishes, strong stirring reaction at room temperature for 12 hours. To the reaction bottle adding sodium bisulfite to saturated aqueous solution of 200 ml quenching the reaction. The reaction mixed solution is filtered, the filter residue successively saturated sodium acid sulfite aqueous solution, water and ethanol washing three times, the filter residue is dried, CHCl for3The recrystallization to carry out purification process, to obtain white crystal 69.6g, yield: 80%.
References:
CN106831817,2017,A Location in patent:Paragraph 0166; 0167; 0168
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