![](/CAS/GIF/931-03-3.gif)
Pyrrole-3-carboxylic acid synthesis
- Product Name:Pyrrole-3-carboxylic acid
- CAS Number:931-03-3
- Molecular formula:C5H5NO2
- Molecular Weight:111.1
![1H-Pyrrole-3-carboxylic acid, methyl ester (9CI)](/CAS/GIF/2703-17-5.gif)
2703-17-5
142 suppliers
$15.00/1g
![Pyrrole-3-carboxylic acid](/CAS/GIF/931-03-3.gif)
931-03-3
171 suppliers
$7.00/100mg
Yield:-
Reaction Conditions:
with sodium hydroxide in methanol;water
Steps:
40 Pyrrole-3-carboxylic Acid
EXAMPLE 40 Pyrrole-3-carboxylic Acid Methyl pyrrole-3-carboxylate (3 g., 24 mmoles) was combined with 40 ml. of methanol and 40 ml. of 1 N sodium hydroxide and refluxed for 1 hour. The methanol was allowed to evaporate, the aqueous residue was diluted with approximately one volume of water and extracted with ether. The aqueous phase was cooled in an ice-water bath and acidified with conc. hydrochloric acid. A small amount of insoluble material was removed by filtration and the filtrate was extracted three times with ethyl acetate. The combined ethyl acetate extracts were back-washed with water and then with saturated brine, dried over anhydrous sodium sulfate, filtered and evaporated to a gummy solid. Trituration with hexane gave crystalline pyrrole-3-carboxylic acid (1.8 g., m.p. 115°-120° C., m/e 111), recovered by filtration.
References:
Pfizer Inc. US4282242, 1981, A
![1H-Pyrrole-3-carboxylic acid, 1-[tris(1-methylethyl)silyl]-](/CAS/20210111/GIF/93362-49-3.gif)
93362-49-3
0 suppliers
inquiry
![Pyrrole-3-carboxylic acid](/CAS/GIF/931-03-3.gif)
931-03-3
171 suppliers
$7.00/100mg
![Pyrrole](/CAS/GIF/109-97-7.gif)
109-97-7
339 suppliers
$9.00/5 g
![Carbon dioxide](/CAS/GIF/124-38-9.gif)
124-38-9
121 suppliers
$175.00/23402
![Pyrrole-3-carboxylic acid](/CAS/GIF/931-03-3.gif)
931-03-3
171 suppliers
$7.00/100mg
![Pyrrole-2-carboxylic acid](/CAS/GIF/634-97-9.gif)
634-97-9
280 suppliers
$6.00/1g
![Brunfelsamidine](/CAS/20180808/GIF/97744-98-4.gif)
97744-98-4
1 suppliers
inquiry
![Pyrrole-3-carboxylic acid](/CAS/GIF/931-03-3.gif)
931-03-3
171 suppliers
$7.00/100mg
![3-CYANOPYRROLE](/CAS/GIF/7126-38-7.gif)
7126-38-7
66 suppliers
inquiry
![Pyrrole-3-carboxylic acid](/CAS/GIF/931-03-3.gif)
931-03-3
171 suppliers
$7.00/100mg