3,4-Pyridinedicarboxylic acid synthesis
- Product Name:3,4-Pyridinedicarboxylic acid
- CAS Number:490-11-9
- Molecular formula:C7H5NO4
- Molecular Weight:167.12
119-65-3
408 suppliers
$5.00/25g
490-11-9
334 suppliers
$6.00/5g
Yield:490-11-9 71%
Reaction Conditions:
with Iron(III) nitrate nonahydrate;tetrabutylammomium bromide;nitric acid in water at 60; for 16 h;
Steps:
9.1-9.3 Example 9
(1) Put 30 g of water into the reaction kettle, start stirring, and add 0.06 g of Fe (NO3) 3.9H2O, 15 g of 96% sulfuric acid, 0.03 g of tetrabutylamine bromide, 2.5 g of isoquinoline, and raise the temperature;(2) When the reaction temperature reaches 60 ° C, 20g of oxone is added in batches, and the reaction is incubated for 16h after the addition;(3) After the reaction is completed, the temperature is reduced to -10 to 10 ° C, and concentrated ammonia is slowly added dropwise under stirring to adjust the pH value to 0.6 to 1, and then the stirring is continued for 1 h, suction filtered, and dried to obtain 3,4-pyridine dicarboxylic acid. The filtrate was used for further product recovery with a yield of 71%.
References:
Changshu Institute of Technology;Yang Yang;Fu Renzhong;Wang Xin;Fang Zhengjiao;Lu Zhengyi;Zeng Xiaojun CN110818628, 2020, A Location in patent:Paragraph 0097-0098
59-67-6
1111 suppliers
$7.00/25g
124-38-9
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$175.00/23402
490-11-9
334 suppliers
$6.00/5g
110-86-1
852 suppliers
$9.00/5g
124-38-9
130 suppliers
$175.00/23402
59-67-6
1111 suppliers
$7.00/25g
499-81-0
304 suppliers
$7.00/5g
100-26-5
361 suppliers
$8.00/5g
490-11-9
334 suppliers
$6.00/5g
