![](/CAS/GIF/33821-58-8.gif)
CHEMBRDG-BB 4002882 synthesis
- Product Name:CHEMBRDG-BB 4002882
- CAS Number:33821-58-8
- Molecular formula:C7H7NO3
- Molecular Weight:153.14
![(Z)-3-((dimethylamino)methylene)-6-methyl-2H-pyran-2,4(3H)-dione](/CAS/20180703/GIF/33821-61-3.gif)
33821-61-3
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![CHEMBRDG-BB 4002882](/CAS/GIF/33821-58-8.gif)
33821-58-8
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$46.00/1g
Yield:-
Reaction Conditions:
with ammonium hydroxide
Steps:
8 6-Methyl-4-(1H)-pyridone-3-carboxylic acid
EXAMPLE 8 6-Methyl-4-(1H)-pyridone-3-carboxylic acid A mixture of 3-(dimethylaminomethylene)-4-oxo-6-methyl-2-pyrone (85.0 g) and ammonium hydroxide (500 ml) is slowly heated to 70° C. with the condenser outlet open. The mixture is heated at 70°-80° C. for 3 hours, concentrated to a volume of about 100 ml and acidified with 3N HCl to pH 5. The product is filtered and washed with water and diethyl ether to give 38.6 g of the title compound. Physical characteristics are as follows: Melting point 266°-268° C. (dec.).
References:
US5001235,1991,A
![ETHYL 2,4-DICHLORO-6-METHYLPYRIDINE-3-CARBOXYLATE](/CAS/GIF/86129-63-7.gif)
86129-63-7
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$12.00/1g
![CHEMBRDG-BB 4002882](/CAS/GIF/33821-58-8.gif)
33821-58-8
32 suppliers
$46.00/1g
![ETHYL 4-HYDROXY-6-METHYL-2-OXO-1,2-DIHYDROPYRIDINE-3-CARBOXYLATE](/CAS/GIF/10350-10-4.gif)
10350-10-4
86 suppliers
$13.00/1g
![CHEMBRDG-BB 4002882](/CAS/GIF/33821-58-8.gif)
33821-58-8
32 suppliers
$46.00/1g
![3-Pyridinecarboxylic acid, 2-chloro-4-methoxy-6-methyl-, ethyl ester](/CAS/20180528/GIF/111953-14-1.gif)
111953-14-1
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![CHEMBRDG-BB 4002882](/CAS/GIF/33821-58-8.gif)
33821-58-8
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$46.00/1g
![ethyl 2-chloro-4-ethoxy-6-Methylnicotinate](/CAS/GIF/111953-15-2.gif)
111953-15-2
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![CHEMBRDG-BB 4002882](/CAS/GIF/33821-58-8.gif)
33821-58-8
32 suppliers
$46.00/1g