ChemicalBook CAS DataBase List 9,10-dibroMo-2,6-di-tert-butylanthracene

9,10-dibroMo-2,6-di-tert-butylanthracene synthesis

3synthesis methods

Product Name:9,10-dibroMo-2,6-di-tert-butylanthracene
CAS Number:332083-45-1
Molecular formula:C22H24Br2
Molecular Weight:448.23

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9,10-dibroMo-2,6-di-tert-butylanthracene

332083-45-1
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Yield:332083-45-1 90%

Reaction Conditions:

with bromine in dichloromethane at 20; for 2 h;Cooling with ice;

Steps:

1.2; 2.2; 2.3; 2.4 (2) Synthesis of intermediate 3

Intermediate 2 (1.45 g, 5 mmol) was added to the reaction flask, dissolved in dichloromethane, and the reaction flask was subjected to ice-water bath. Liquid bromine (0.256mL, 5mmol) was added dropwise to the reaction flask. After the addition was completed, the reaction was stirred at room temperature for 2 h. The reaction solution was reduced with a saturated sodium thiosulfate solution, then extracted, washed, and combined with toluene. Recrystallization gave the product as a white solid (intermediate 3), yield 90%;

References:

CN108586353,2018,A Location in patent:Page/Page column 8-12

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