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
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
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..…
N-Bromosuccinimide Price
- 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
- 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
- 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
- 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
- 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
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
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View Lastest Price from ethyl 4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carboxylate manufacturers
- 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
- 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