1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

Base Information

Chemical Name:1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol
CAS No.:437612-98-1
Molecular Formula:C₁₆H₁₀ClFN₂O
Molecular Weight:300.72
Hs Code.:

Synonyms:1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

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Chemical Property of 1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

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Technology Process of 1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

There total 7 articles about 1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 88.0%

: 437612-89-0
7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carbaldehyde

: 4301-14-8
acetylenemagnesium bromide

: 437612-98-1
1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

Guidance literature:: In tetrahydrofuran; at -78 - 0 ℃;
DOI:10.1016/j.tet.2003.02.003

Reference yield:

: 437384-07-1
7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine

: 437612-98-1
1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

Guidance literature:: Multi-step reaction with 2 steps

1: 95 percent / phosphorous oxychloride

2: 88 percent / tetrahydrofuran / 1 h / 0 °C

With trichlorophosphate; In tetrahydrofuran; 1: Vilsmeier-Haack formylation;
DOI:10.1016/j.bmc.2005.01.044

Reference yield:

: 18368-63-3
6-chloro-2-picoline

: 437612-98-1
1-[7-chloro-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridin-3-yl]-2-propyn-1-ol

Guidance literature:: Multi-step reaction with 7 steps

1: 66 percent / lithium bis(trimethylsilyl)amide / tetrahydrofuran / 15 h / 45 °C

2: 86 percent / hydroxylamine hydrochloride; aq. NaOH / methanol / 2 h / Heating

3: 1,2-dimethoxy-ethane / 0 - 15 °C

4: Et₃N / 1,2-dimethoxy-ethane / 2 h / 4 - 20 °C

5: 69.7 g / FeCl₂ / 1,2-dimethoxy-ethane / 3 h / Heating

6: 95 percent / POCl₃ / 1 h / 20 °C

7: 88 percent / tetrahydrofuran / -78 - 0 °C

With sodium hydroxide; hydroxylamine hydrochloride; triethylamine; iron(II) chloride; lithium hexamethyldisilazane; trichlorophosphate; In tetrahydrofuran; methanol; 1,2-dimethoxyethane;
DOI:10.1016/j.tet.2003.02.003