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ChemicalBook >> CAS DataBase List >>5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Structure
5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester structure
CAS No.
51135-70-7
Chemical Name:
5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester
Synonyms
ETHYL 5-METHYLPYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLATE;5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester;Pyrazolo[1,5-a]pyridine-3-carboxylic acid, 5-methyl-, ethyl ester
CBNumber:
CB2404947
Molecular Formula:
C11H12N2O2
Molecular Weight:
204.23
MDL Number:
MFCD06739193
MOL File:
51135-70-7.mol
MSDS File:
SDS
Last updated:2026-09-12 18:51:18
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5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Properties

storage temp. 2-8°C
Appearance White to off-white Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H320-H335
Precautionary statements  P261-P280-P301+P312-P302+P352-P305+P351+P338

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Chem-Impex 19135 5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester 51135-70-7 250MG $291.8 2026-05-19 Buy
Chem-Impex 19135 5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester 51135-70-7 1G $705.5 2026-05-19 Buy
Matrix Scientific 221694 Ethyl 5-methylpyrazolo[1,5-a]pyridine-3-carboxylate 51135-70-7 100.00mg $19 2026-05-18 Buy
Matrix Scientific 221694 Ethyl 5-methylpyrazolo[1,5-a]pyridine-3-carboxylate 51135-70-7 250.00mg $33 2026-05-18 Buy
Matrix Scientific 221694 Ethyl 5-methylpyrazolo[1,5-a]pyridine-3-carboxylate 51135-70-7 1.00g $95 2026-05-18 Buy
Product number Packaging Price Buy
19135 250MG $291.8 Buy
19135 1G $705.5 Buy
221694 100.00mg $19 Buy
221694 250.00mg $33 Buy
221694 1.00g $95 Buy

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Chemical Properties,Uses,Production

Synthesis

Methylboronic acid

13061-96-6

5-BROMO-PYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER

885276-93-7

5-METHYL-PYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER

51135-70-7

Ethyl 5-bromopyrazolo[1,5-a]pyridine-3-carboxylate (1.0 g, 3.73 mmol) and methylboronic acid (448 mg, 7.46 mmol) were used as raw materials, and Pd(dppf)Cl2 (545 mg, 0.746 mmol) and Cs2CO3 (2.42 g, 7.46 mmol) were added, protected by argon gas, in DMF ( 5.0 mL) in DMF. The reaction mixture was stirred at 100 °C for 2 hours. After completion of the reaction, the mixture was concentrated and purified by silica gel column chromatography using petroleum ether: ethyl acetate (5:1, v/v) as eluent to afford the target compound, ethyl 5-methylpyrazolo[1,5-a]pyridine-3-carboxylate, as an orange solid (589 mg, 77% yield).ESI-MS m/z = 204.5 [M + H]+.

References

[1] Patent: WO2017/15449, 2017, A1. Location in patent: Page/Page column 342

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester synthesis

13061-96-6
885276-93-7
51135-70-7
Synthesis of 5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester from Methylboronic acid and 5-Bromo-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Preparation Products And Raw materials

Raw materials

5-Bromo-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Methylboronic acid 4-Methylpyridine Ethyl O-mesitylsulfonylacetohydroxamate Ethyl propiolate
Ethyl propionate [1,1'-Bis(diphenylphosphino)ferrocene]dichloropalladium(II) Cesium carbonate N,N-Dimethylformamide

1of2

Preparation Products

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Suppliers

Global( 29)Suppliers
Supplier Tel Email Country ProdList Advantage
Tianjin Ji Ping Jia Chemical Co., Ltd. 18622448868 jpjchem@163.com China 489 62
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Changzhou Hopschain Chemical Co.,Ltd. 85528066 13775048983 sales@hopschem.com China 31548 55
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Rhawn Reagent 400-400-1332688 18019345275 huyue@rhawn.cn China 14942 58
Shanghai zhigan biotechnology co., LTD zhiqianbio@126.com China 19765 58
Jiangsu aikang biomedical research and development co., LTD 025-58859352 17714375163 qzhang@aikonchem.com China 15525 58
Changzhou Xuanye Technology Co., Ltd 15195022192; 279776773@qq.com China 1999 58
Shanghai Kaiwei Chemical Technology Co., Ltd. 021-58461859 15821823057 service@aiviche.com China 49299 58
JW & Y Pharmlab Co., Ltd. 021-64340559 13651849907 xinyu_shi@jwypharmlab.com.cn China 9898 58
Supplier Advantage
Tianjin Ji Ping Jia Chemical Co., Ltd. 62
Bide Pharmatech Ltd. 60
Changzhou Hopschain Chemical Co.,Ltd. 55
Amadis Chemical Company Limited 58
Rhawn Reagent 58
Shanghai zhigan biotechnology co., LTD 58
Jiangsu aikang biomedical research and development co., LTD 58
Changzhou Xuanye Technology Co., Ltd 58
Shanghai Kaiwei Chemical Technology Co., Ltd. 58
JW & Y Pharmlab Co., Ltd. 58

5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester Spectrum

5-METHYL-PYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER(51135-70-7)1HNMR

51135-70-7(5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester)Related Search:

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Pyrazolo[1,5-a]pyridin-3-carbaldehyde Pyrazolo[1,5-a]pyridine-3-carboxylic acid

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ETHYL 5-METHYLPYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLATE Pyrazolo[1,5-a]pyridine-3-carboxylic acid, 5-methyl-, ethyl ester 5-Methyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester 51135-70-7