3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

Base Information

Chemical Name:3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole
CAS No.:602300-45-8
Molecular Formula:C₁₇H₁₀N₄O₂S
Molecular Weight:334.358
Hs Code.:

Synonyms:3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

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Chemical Property of 3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

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Technology Process of 3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

There total 3 articles about 3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole 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: 41.0%

: 602300-39-0
3-amino-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

: 602300-45-8
3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

Guidance literature:: 3-amino-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole; With sulfuric acid; sodium nitrite; In water; at 0 - 5 ℃;

With sulfuric acid; In water; Heating;
DOI:10.1002/jhet.5570400322

Reference yield:

: 100-63-0
phenylhydrazine

: 602300-45-8
3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

Guidance literature:: Multi-step reaction with 2 steps

1.1: 51 percent / potassium carbonate / dimethylformamide / Heating

2.1: conc. sulfuric acid; sodium nitrite / H₂O / 0 - 5 °C

2.2: 41 percent / aq. sulfuric acid / H₂O / Heating

With sulfuric acid; potassium carbonate; sodium nitrite; In water; N,N-dimethyl-formamide;
DOI:10.1002/jhet.5570400322

Reference yield:

: 478690-56-1
2-methylsulfanyl-4-oxo-4H-pyrimido[2,1-b]benzothiazole-3-carbonitrile

: 602300-45-8
3-hydroxy-4-oxo-2-phenylpyrazolo[3',4':4,5]pyrimido[2,1-b]benzothiazole

Guidance literature:: Multi-step reaction with 2 steps

1.1: 51 percent / potassium carbonate / dimethylformamide / Heating

2.1: conc. sulfuric acid; sodium nitrite / H₂O / 0 - 5 °C

2.2: 41 percent / aq. sulfuric acid / H₂O / Heating

With sulfuric acid; potassium carbonate; sodium nitrite; In water; N,N-dimethyl-formamide;
DOI:10.1002/jhet.5570400322