methyl 3-formylpyrazolo[1,5-a]pyridine-5-carboxylate synthesis

3synthesis methods

Product Name:methyl 3-formylpyrazolo[1,5-a]pyridine-5-carboxylate
CAS Number:1101120-09-5
Molecular formula:C10H8N2O3
Molecular Weight:204.18

Pyrazolo[1,5-a]pyridine-3,5-dicarboxylic acid, 3-ethyl 5-methyl ester

1101120-00-6
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methyl 3-formylpyrazolo[1,5-a]pyridine-5-carboxylate

1101120-09-5
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Yield:-

Steps:

Multi-step reaction with 3 steps
1.1: sulfuric acid; water / 18 h / Reflux
1.2: pH 2
2.1: hydrogenchloride / water / 4 h / Reflux
3.1: trichlorophosphate / 2 h / 20 °C / Inert atmosphere
3.2: pH 10

References:

Kendall, Jackie D.;O'Connor, Patrick D.;Marshall, Andrew J.;Frédérick, Rapha?l;Marshall, Elaine S.;Lill, Claire L.;Lee, Woo-Jeong;Kolekar, Sharada;Chao, Mindy;Malik, Alisha;Yu, Shuqiao;Chaussade, Claire;Buchanan, Christina;Rewcastle, Gordon W.;Baguley, Bruce C.;Flanagan, Jack U.;Jamieson, Stephen M.F.;Denny, William A.;Shepherd, Peter R. [Bioorganic and Medicinal Chemistry,2012,vol. 20,# 1,p. 69 - 85]

2459-09-8 Synthesis

2459-09-8
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References

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

104468-87-3
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$48.00/250mg

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References