7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-5-methyl- (9CI)

Base Information

• Chemical Name: 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-5-methyl- (9CI)
• CAS No.: 55904-62-6
• Molecular Formula: C₆H₆N₄O
• Molecular Weight: 150.14
• Hs Code.: 2933998090
• Mol file: 55904-62-6.mol

Synonyms:7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-5-methyl- (9CI)

Chemical Property of 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-5-methyl- (9CI)

Chemical Property:

• PKA: 10.69±0.20(Predicted)
• PSA: 74.43000
• Density: 1.72±0.1 g/cm3(Predicted)
• LogP: -0.04540

Purity/Quality:

99% ^*data from raw suppliers

5-Methyl-1H-pyrazolo[4,3-d]pyrimidin-7-ol 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-5-methyl- (9CI)

There total 3 articles about 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-5-methyl- (9CI) 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:

ethyl 4-amino-1H-pyrazole-5-carboxylate + S-benzyl thioacetimidate hydrochloride (32894-07-8) → 5-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (55904-62-6)

Guidance literature:

With pyridine; at 115 ℃; Inert atmosphere;

Reference yield:

4-amino-1H-pyrazole-3-carboxylic acid ethyl ester (55904-61-5) → 5-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (55904-62-6)

Guidance literature:

With pyridine; S-benzyl thioacetimidate hydrochloride; at 115 ℃;

DOI:10.1016/j.bmcl.2021.128082

Reference yield:

→ 5-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (55904-62-6)

Guidance literature:

Verb.7,Verb.8;

DOI:10.1021/jo00907a027

upstream raw materials:

S-benzyl thioacetimidate hydrochloride

4-amino-1H-pyrazole-3-carboxylic acid ethyl ester