1-Methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

Base Information

• Chemical Name: 1-Methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
• CAS No.: 361340-57-0
• Molecular Formula: C18H21N5O4
• Molecular Weight: 371.396
• Mol file: 361340-57-0.mol

Synonyms:7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,6-dihydro-1-methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-;

Chemical Property of 1-Methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1-Methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

There total 5 articles about 1-Methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-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: 41.0%

1-methyl-4-(5-nitro-2-n-propoxybenzamido)-3-n-propylpyrazole-5-carboxamide (361340-56-9) → 1-methyl-5-(5-nitro-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (361340-57-0)

Guidance literature:

With sodium hydroxide; In ethanol; water; at 60 ℃; for 18h;

DOI:10.1016/S0968-0896(01)00095-5

Reference yield:

5-(2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (139756-23-3) → 1-methyl-5-(5-nitro-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (361340-57-0)

Guidance literature:

With sulfuric acid; nitric acid; at -10 - 10 ℃;

Reference yield:

1-Methyl-4-(2-n-propoxybenzamido)-3-n-propylpyrazole-5-carboxamide (139756-04-0) → 1-methyl-5-(5-nitro-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (361340-57-0)

Guidance literature:

Multi-step reaction with 2 steps

1: 84 percent / conc. HNO₃ / trifluoroacetic acid / 3 h / 20 °C

2: 41 percent / 1 N NaOH / H₂O; ethanol / 18 h / 60 °C

With sodium hydroxide; nitric acid; In ethanol; water; trifluoroacetic acid;

DOI:10.1016/S0968-0896(01)00095-5

upstream raw materials:

1-methyl-4-(5-nitro-2-n-propoxybenzamido)-3-n-propylpyrazole-5-carboxamide

1-Methyl-4-(2-n-propoxybenzamido)-3-n-propylpyrazole-5-carboxamide

2-propoxybenzoic acid

2-propoxybenzoyl chloride

Downstream raw materials:

5-(5-amino-2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one