2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

Base Information

Chemical Name:2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one
CAS No.:1356835-22-7
Molecular Formula:C₁₅H₁₅N₇O₂
Molecular Weight:325.33
Hs Code.:

Synonyms:2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

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Chemical Property of 2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

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Technology Process of 2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

There total 3 articles about 2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one 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: 78.0%

: 3,5-diamino-4-(4-acetamidiophenylazo)-1H-pyrazole

: 141-97-9
ethyl acetoacetate

: 1356835-22-7
2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

Guidance literature:: In acetic acid; for 3h; Reflux;
DOI:10.1016/j.molstruc.2011.11.046

Reference yield:

: 91093-95-7
2-(4-acetamidophenylazo)malononitrile

: 1356835-22-7
2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

Guidance literature:: Multi-step reaction with 2 steps

1: pyridine; hydrazine hydrate / ethanol / 3 h / Reflux

2: acetic acid / 3 h / Reflux

With pyridine; hydrazine hydrate; In ethanol; acetic acid;
DOI:10.1016/j.molstruc.2011.11.046

Reference yield:

: 122-80-5
N-acetyl-p-phenylenediamine

: 1356835-22-7
2-amino-3-(4-acetamidiophenylazo)-7-methyl-4H-pyrazolo[1,5-a]-pyrimidin-5-one

Guidance literature:: Multi-step reaction with 3 steps

1.1: hydrogenchloride; sodium nitrite / water / 0.17 h / 0 °C

1.2: 3 h / 0 °C

2.1: pyridine; hydrazine hydrate / ethanol / 3 h / Reflux

3.1: acetic acid / 3 h / Reflux

With pyridine; hydrogenchloride; hydrazine hydrate; sodium nitrite; In ethanol; water; acetic acid;
DOI:10.1016/j.molstruc.2011.11.046