1,4-DIAMINO-5-NITROANTHRAQUINONE synthesis
- Product Name:1,4-DIAMINO-5-NITROANTHRAQUINONE
- CAS Number:82-33-7
- Molecular formula:C14H9N3O4
- Molecular Weight:283.24
110-01-0
212 suppliers
$10.00/5g
128-95-0
293 suppliers
$22.80/25g
7446-11-9
69 suppliers
$662.15/1G
82-33-7
14 suppliers
inquiry
Yield:-
Reaction Conditions:
with sulfuric acid
Steps:
1 EXAMPLE 1
EXAMPLE 1 60 g of sulphur trioxide are added dropwise over the course of 15 minutes to 150 g of sulpholane. At the conclusion of the addition the temperature is 30°-40°C. With stirring, 23.8 g of 1,4-diaminoanthraquinone are added and the batch is kept for 4 hours at 60°-65°C. and then cooled to 20°C-25°C. At this temperature 16.5 g of 50% mixed nitric and sulphuric acid are added dropwise over the course of 2 hours and stirring is continued for 4 hours. The precipitated crystallized 5-nitro-1,9-4,10-anthraquinone-disulphonimide is filtered off, washed with water and dried. The yield is 74.5% of theory. The 1,4-diamino-5-nitroanthraquinone is obtained from the nitroanthraquinone-disulphonimide in known manner, e.g. by saponification with 96% sulphuric acid at 120°C.
References:
US3978095,1976,A
![Anthra[1,9-de:4,10-d'e']bis[1,2,3]oxathiazine 2,2,7,7-tetraoxide](/CAS/20210305/GIF/25158-35-4.gif)
25158-35-4
0 suppliers
inquiry
82-33-7
14 suppliers
inquiry
6534-28-7
9 suppliers
inquiry
82-33-7
14 suppliers
inquiry