5-Methyl-2,3-pyridinedicarboxylic acid
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5-Methyl-2,3-pyridinedicarboxylic acid
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CAS No:
53636-65-0
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Formula:
C8H7NO4
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Chemical Name:
5-Methyl-2,3-pyridinedicarboxylic acid
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Synonyms:
2,3-Pyridinedicarboxylic acid,5-methyl-;5-Methyl-2,3-pyridinedicarboxylic acid;5-Methylpyridine-2,3-dicarboxylic acid
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CAS No:
Characteristics
87.5
0.6
DryPowder; OtherSolid
1.5±0.1 g/cm3
436.2°C at 760 mmHg
217.6±28.7 °C
1.611
5-Methyl-2,3-pyridinedicarboxylic acid Use and Manufacturing
The preparation method is based on 2-ethylacrolein, diethyl oxaloacetate and ammonium chloride as raw materials, reacting in the presence of ethanol solvent and catalyst, heating and refluxing for 5 hours, after cooling, adding water to wash twice, and then dewatering Layer, the organic phase is desolvated to obtain diethyl 5-ethyl-2, 3-pyridinedicarboxylate, which is further hydrolyzed in an acid medium to obtain a finished product.
5-Ethyl-2,3-pyridinedicarboxylic acid is an intermediate of the herbicide imazethapyr.
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5-Methyl-2,3-pyridinedicarboxylic acid
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