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ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate

Product Name
ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate
CAS No.
885500-55-0
Chemical Name
ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate
Synonyms
Ethyl 4-Chloro-7-azaindole-5-carboxylate;4-Chloro-7-azaindole-5-carboxylic acid ethyl ester;ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate;4-Chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid ethyl ester;1H-Pyrrolo[2,3-b]pyridine-5-carboxylic acid, 4-chloro-, ethyl ester
CBNumber
CB62534190
Molecular Formula
C10H9ClN2O2
Formula Weight
224.64
MOL File
885500-55-0.mol
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ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate Property

Density 
1.391±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
pka
12.07±0.40(Predicted)
Appearance
White to off-white Solid
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

ChemScene
Product number
CS-B0566
Product name
1H-Pyrrolo[2,3-b]pyridine-5-carboxylicacid,4-chloro-,ethylester
Packaging
250mg
Price
$146
Updated
2021/12/16
ChemScene
Product number
CS-B0566
Product name
1H-Pyrrolo[2,3-b]pyridine-5-carboxylicacid,4-chloro-,ethylester
Packaging
1g
Price
$388
Updated
2021/12/16
ChemScene
Product number
CS-B0566
Product name
1H-Pyrrolo[2,3-b]pyridine-5-carboxylicacid,4-chloro-,ethylester
Packaging
5g
Price
$1410
Updated
2021/12/16
ChemScene
Product number
CS-B0566
Product name
1H-Pyrrolo[2,3-b]pyridine-5-carboxylicacid,4-chloro-,ethylester
Packaging
100mg
Price
$99
Updated
2021/12/16
ChemScene
Product number
CS-B0566
Product name
1H-Pyrrolo[2,3-b]pyridine-5-carboxylicacid,4-chloro-,ethylester
Packaging
10g
Price
$2153
Updated
2021/12/16
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ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate Chemical Properties,Usage,Production

Uses

Ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate is used as a pharmaceutical intermediate, which can be used to prepare small molecule active compounds such as JAK and PGDH inhibitors.

Synthesis

541-41-3

651744-48-8

885500-55-0

Under argon protection, 4-chloro-1-[tris(methylethyl)silyl ester]-1H-pyrrolo[2,3-b]pyridine (15 g, 48.6 mmol) was dissolved in tetrahydrofuran (THF) (150 mL) and cooled to -78 °C. A 1 M mixture of H-BuLi cyclohexane and hexane (97.1 mL, 97.1 mmol) was added slowly and dropwise. After stirring the reaction mixture at -78 °C for 1 h, ethyl chloroformate (9.29 mL, 97.1 mmol) was added. Stirring was continued at -78 °C for 30 min, followed by quenching the reaction with saturated aqueous NH4Cl and extraction with EtOAc. The combined organic phases were washed sequentially with water and brine, dried over anhydrous MgSO4 and concentrated under reduced pressure. The residue was dissolved in THF (120 mL) and 1M solution of TBAF THF (56 mL, 56 mmol) was added. After stirring for 1 h at room temperature, the reaction mixture was diluted with EtOAc, washed with water, dried over anhydrous MgSO4 and concentrated under reduced pressure. The residue was ground with isopropyl ether (IPE) and the precipitate was collected by filtration to afford ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate (9.6 g, 88% yield). Product characterization data: 1H-NMR (DMSO-d6) δ: 1.36 (3H, t, J=7.1 Hz), 4.36 (2H, q, J=7.1 Hz), 6.64-6.67 (1H, m), 7.70-7.73 (1H, m), 8.71 (1H, s), 12.41 (1H, br). m/z MS (ESI): 223 (M-H)-.

References

[1] Chemical and Pharmaceutical Bulletin, 2015, vol. 63, # 5, p. 341 - 353

ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate Preparation Products And Raw materials

Raw materials

Preparation Products

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ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate Suppliers

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shanghai cooperpharm co.,LTD .
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View Lastest Price from ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate 885500-55-0
Price
US $0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1000kg
Release date
2025-06-11
Career Henan Chemical Co
Product
ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate 885500-55-0
Price
US $9.80/KG
Min. Order
1g
Purity
≥99%
Supply Ability
100kg
Release date
2020-01-11