3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

Base Information

Chemical Name:3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine
CAS No.:944478-21-1
Molecular Formula:C₁₆H₁₅N₇O₃
Molecular Weight:353.34
Hs Code.:

Synonyms:3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

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Chemical Property of 3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

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Technology Process of 3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

There total 4 articles about 3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine 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: 99.0%

: 944478-17-5
5-chloro-3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidine

: 944478-21-1
3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

Guidance literature:: With hydrazine hydrate; In 1,4-dioxane; for 1h; Heating;
DOI:10.1002/ardp.200700005

Reference yield:

: 944478-15-3
2-acetyl-3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5(6H)-one

: 944478-21-1
3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

Guidance literature:: Multi-step reaction with 3 steps

1: 89 percent / aq. NH₄OH / ethanol / 3 h / 20 °C

2: 85 percent / POCl₃ / 2 h / Heating

3: 99 percent / hydrazine hydrate / dioxane / 1 h / Heating

With ammonium hydroxide; hydrazine hydrate; trichlorophosphate; In 1,4-dioxane; ethanol;
DOI:10.1002/ardp.200700005

Reference yield:

: 89607-34-1,879451-69-1
6-amino-2,4-dihydro-4-(4-nitrophenyl)-3-methylpyrano[2,3-c]pyrazole-5-carbonitrile

: 944478-21-1
3,7-dimethyl-4-(4-nitrophenyl)-2,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidin-5-ylhydrazine

Guidance literature:: Multi-step reaction with 4 steps

1: 50 percent / 3 h / Heating

2: 89 percent / aq. NH₄OH / ethanol / 3 h / 20 °C

3: 85 percent / POCl₃ / 2 h / Heating

4: 99 percent / hydrazine hydrate / dioxane / 1 h / Heating

With ammonium hydroxide; hydrazine hydrate; trichlorophosphate; In 1,4-dioxane; ethanol;
DOI:10.1002/ardp.200700005