3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

Base Information

Chemical Name:3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate
CAS No.:1101118-14-2
Molecular Formula:C₁₈H₁₇N₅O₆S
Molecular Weight:431.429
Hs Code.:

Synonyms:3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

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Chemical Property of 3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

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Technology Process of 3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

There total 7 articles about 3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate 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: 71.0%

: 1101118-14-2
3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

Guidance literature:

Reference yield:

: 186581-53-3,908094-01-9,334-88-3
diazomethane

: C₁₇H₁₅N₅O₆S

: 1101118-14-2
3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

Guidance literature:: In tetrahydrofuran; methanol; diethyl ether; at 20 ℃; for 4h;
DOI:10.1016/j.bmc.2011.11.029

Reference yield:

: 620-08-6,1232006-56-2
4-methoxypyridine

: 1101118-14-2
3-((2-methyl-2-(2-methyl-5-nitrophenylsulfonyl)-hydrazono)methyl)pyrazolo[1,5-a]pyridin-5-yl acetate

Guidance literature:: Multi-step reaction with 6 steps

1.1: O-(2,4-dinitrophenyl)hydroxylamine / acetonitrile / 18 h / 40 °C

1.2: 18 h / 20 °C

2.1: sulfuric acid; water / 18 h / Reflux

2.2: pH 7

3.1: trichlorophosphate / 2 h / 20 °C / Inert atmosphere

3.2: pH 3

4.1: triethylamine / dichloromethane / 72 h / 20 °C

5.1: methanol / 4 h / 20 °C

6.1: tetrahydrofuran; methanol; diethyl ether / 4 h / 20 °C

With sulfuric acid; water; triethylamine; O-(2,4-dinitrophenyl)hydroxylamine; trichlorophosphate; In tetrahydrofuran; methanol; diethyl ether; dichloromethane; acetonitrile; 3.1: Vilsmeier formylation;
DOI:10.1016/j.bmc.2011.11.029