![](/CAS/GIF/81-50-5.gif)
1-AMINO-4-BROMO-2-METHYLANTHRAQUINONE synthesis
- Product Name:1-AMINO-4-BROMO-2-METHYLANTHRAQUINONE
- CAS Number:81-50-5
- Molecular formula:C15H10BrNO2
- Molecular Weight:316.15
![1-AMINO-2-METHYLANTHRAQUINONE](/CAS/GIF/82-28-0.gif)
82-28-0
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$40.00/25mg
![1-AMINO-4-BROMO-2-METHYLANTHRAQUINONE](/CAS/GIF/81-50-5.gif)
81-50-5
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$55.00/5g
Yield:81-50-5 90%
Reaction Conditions:
with sodium hydrogen sulfate;bromine;acetic acid in water;
Steps:
I.A EXAMPLE I
A. 1-amino-2-methylanthraquinone (300 g) is slurried with 1500 ml of HOAc in a 5-liter flask. The temperature is raised to 40° C. Neat bromine (405 g) is added over 21/2 hours with stirring at 40°-50° C. The mixture is stirred for 20 additional minutes and filtered. The solids so recovered are washed with HOAc and water and sucked dry with an aspirator and transferred to a reaction flask along with 150 g of NaHSO3 and 1.5 liters of water. The mixture is gradually heated to 90° C. (over two hours) with stirring to give 1-amino-2-methyl-4-bromoanthraquinone as a solid which is recovered from the reaction mixture by filtration in 90% yield, rinsed with water and dried overnight at 155° C. and 1 mm Hg absolute vacuum. It will be appreciated that chlorine or iodine could be substituted for bromine in this reaction if desired. STR24
References:
US4279662,1981,A
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![1-AMINO-2-METHYLANTHRAQUINONE](/CAS/GIF/82-28-0.gif)
82-28-0
90 suppliers
$40.00/25mg
![1-AMINO-4-BROMO-2-METHYLANTHRAQUINONE](/CAS/GIF/81-50-5.gif)
81-50-5
29 suppliers
$55.00/5g
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![1-AMINO-4-BROMO-2-METHYLANTHRAQUINONE](/CAS/GIF/81-50-5.gif)
81-50-5
29 suppliers
$55.00/5g