2,5-Dibromoterephthalic acid diethyl ester synthesis
- Product Name:2,5-Dibromoterephthalic acid diethyl ester
- CAS Number:18013-97-3
- Molecular formula:C12H12Br2O4
- Molecular Weight:380.03
64-17-5
13731-82-3
18013-97-3
The general procedure for the synthesis of diethyl 2,5-dibromoterephthalate from ethanol and 2,5-dibromoterephthalic acid is as follows: first, 2,5-dibromoterephthalic acid is esterified with ethanol in the presence of an acidic catalyst. Upon completion of the reaction, excess ethanol and water generated in the reaction are removed by distillation. Subsequently, the reaction mixture is cooled to room temperature and washed by adding an appropriate amount of water to remove unreacted acid and catalyst. Finally, the target product diethyl 2,5-dibromoterephthalate was purified by recrystallization or column chromatography.
64-17-5
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13731-82-3
200 suppliers
$7.00/1g
18013-97-3
143 suppliers
$6.00/1g
Yield:18013-97-3 96%
Reaction Conditions:
sulfuric acidReflux;
Steps:
The inventive diindenothiophene derivatives can be produced by any of the methods that are conventionally known to persons having ordinary skill in the art. For instance, the above-mentioned compound of formula (2) can be prepared by a method comprising the following steps:
References:
ETERNAL CHEMICAL CO., LTD. US2010/168444, 2010, A1 Location in patent:Page/Page column 4-8
6165-68-0
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18013-97-3
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$6.00/1g
1074-24-4
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18013-97-3
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106-42-3
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18013-97-3
143 suppliers
$6.00/1g
13731-82-3
200 suppliers
$7.00/1g
18013-97-3
143 suppliers
$6.00/1g