ChemicalBook CAS DataBase List 2,6-Dibromoanthraquinone

2,6-Dibromoanthraquinone synthesis

4synthesis methods

Product Name:2,6-Dibromoanthraquinone
CAS Number:633-70-5
Molecular formula:C14H6Br2O2
Molecular Weight:366

131-14-6 Synthesis

131-14-6
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$5.00/1g

633-70-5
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$7.00/250mg

Yield:633-70-5 98.4%

Reaction Conditions:

with tert.-butylnitrite;copper(ll) bromide in acetonitrile at 65;

Steps:

2.2-1
Synthesis Example 2: Synthesis of Compound 8 2-1) Synthesis of 2,6-dibromoanthraquinone 198.2 g (1.5 mol) of tert-butylnitrite and 279.1 g (1.2 mol) of Cu(II)Br were diluted with 6000 ml of acetonitirle in a 10L flask, and then the temperature was increased to 65°C and 119.1 g (0.5 mol) of 2,6-diaminoanthraquinone was slowly added thereto for 5 minutes. When formation of N₂ gas stopped, the temperature was lowered to room temperature and then 3.6 L of 2N HCl (aq) was added thereto and then stirred, thereby producing a solid. The solid was filtered and washed with excess water, MeOH, and acetone and then dried, thereby producing 2,6-dibromoanthraquinone (180 g, 98.4%) (2,6-dibromoanthraquinone).

References:

Samsung Mobile Display Co., Ltd. EP2292604, 2011, A2 Location in patent:Page/Page column 23

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131-14-6 Synthesis

131-14-6
167 suppliers
$5.00/1g

7789-45-9 Synthesis