N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine

Base Information

• Chemical Name: N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine
• CAS No.: 939979-57-4
• Molecular Formula: C₁₇H₁₈Cl₂N₆
• Molecular Weight: 377.276
• Mol file: 939979-57-4.mol

Synonyms:N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine

Chemical Property of N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine

There total 3 articles about N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine 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: 60.77%

piperazine (110-85-0) + 5-chloro-N-(2,4-dichlorobenzyl)pyrazolo[1,5-a]pyrimidin-7-amine (939979-03-0) → N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine (939979-57-4)

Guidance literature:

In N,N-dimethyl-formamide; at 90 ℃;

DOI:10.1016/j.ejmech.2020.112850

Reference yield:

pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione (672323-32-9) → N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine (939979-57-4)

Guidance literature:

Multi-step reaction with 3 steps

1: trichlorophosphate; N,N-dimethyl-aniline / 4 h / 100 °C

2: triethylamine / isopropyl alcohol / 20 °C

3: N,N-dimethyl-formamide / 90 °C

With N,N-dimethyl-aniline; triethylamine; trichlorophosphate; In N,N-dimethyl-formamide; isopropyl alcohol;

DOI:10.1016/j.ejmech.2020.112850

Reference yield:

5,7-dichloropyrazolo[1,5-a]pyrimidine (57489-77-7) → N-(2,4-dichlorobenzyl)-5-(piperazin-1-yl)pyrazolo[1,5-a]pyrimidin-7-amine (939979-57-4)

Guidance literature:

Multi-step reaction with 2 steps

1: triethylamine / isopropyl alcohol / 20 °C

2: N,N-dimethyl-formamide / 90 °C

With triethylamine; In N,N-dimethyl-formamide; isopropyl alcohol;

DOI:10.1016/j.ejmech.2020.112850

upstream raw materials:

piperazine

5-chloro-N-(2,4-dichlorobenzyl)pyrazolo[1,5-a]pyrimidin-7-amine

pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione

5,7-dichloropyrazolo[1,5-a]pyrimidine

Downstream raw materials:

{4-[7-(2,4-dichlorobenzylamino)-pyrazolo[1,5-a]pyrimidin-5-yl]-piperazin-1-yl}-phenyl-methanone

C₁₉H₁₉Cl₃N₆O