N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

Base Information

Chemical Name:N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide
CAS No.:1101118-97-1
Molecular Formula:C₁₆H₁₁FN₆O₄S
Molecular Weight:402.366
Hs Code.:

Synonyms:N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

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Chemical Property of N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

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Technology Process of N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

There total 4 articles about N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide 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: 82.0%

: 1101120-05-1
3-formylpyrazolo[1,5-a]pyridine-5-carbonitrile

: 302-15-8
methylhydrazine sulfuric acid

: 713-21-3
2-fluoro-5-nitrobenzene-1-sulfonyl chloride

: 1101118-97-1
N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

Guidance literature:: 3-formylpyrazolo[1,5-a]pyridine-5-carbonitrile; methylhydrazine sulfuric acid; With 2,6-dimethylpyridine; In methanol;

2-fluoro-5-nitrobenzene-1-sulfonyl chloride; In methanol; for 0.5h;
DOI:10.1016/j.bmc.2011.11.031

Reference yield:

: 1101120-00-6
3-ethyl 5-methyl pyrazolo[1,5-a]pyridine-3,5-dicarboxylate

: 1101118-97-1
N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

Guidance literature:: Multi-step reaction with 4 steps

1.1: sulfuric acid; water / 16 h / Heating / reflux

1.2: 0 °C / pH 2

2.1: 1,1'-carbonyldiimidazole / tetrahydrofuran / 18 h

2.2: 2 h / 0 °C

3.1: trichlorophosphate / 18.5 h / 0 - 20 °C

3.2: 1 h / 0 °C / pH 10

4.1: 2,6-dimethylpyridine / methanol / 1 h

4.2: 2 h

With 2,6-dimethylpyridine; sulfuric acid; water; 1,1'-carbonyldiimidazole; trichlorophosphate; In tetrahydrofuran; methanol; 3.1: Vilsmeier Formylation;

Reference yield:

: 104468-87-3
pyrazolo [1,5-a]pyridine-5-carboxylic acid

: 1101118-97-1
N'-((5-cyanopyrazolo[1,5-a]pyridin-3-yl)methylene)-2-fluoro-N-methyl-5-nitrobenzenesulfonohydrazide

Guidance literature:: Multi-step reaction with 3 steps

1.1: 1,1'-carbonyldiimidazole / tetrahydrofuran / 18 h

1.2: 2 h / 0 °C

2.1: trichlorophosphate / 18.5 h / 0 - 20 °C

2.2: 1 h / 0 °C / pH 10

3.1: 2,6-dimethylpyridine / methanol / 1 h

3.2: 2 h

With 2,6-dimethylpyridine; 1,1'-carbonyldiimidazole; trichlorophosphate; In tetrahydrofuran; methanol; 2.1: Vilsmeier Formylation;