1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

Base Information

• Chemical Name: 1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione
• CAS No.: 40769-81-1
• Molecular Formula: C₅H₄N₄O₂
• Molecular Weight: 152.112
• Hs Code.: 2933990090
• Mol file: 40769-81-1.mol

Synonyms:1H-Pyrazolo[4,3-d]pyrimidine-5,7-diol(6CI); 5,7-Dihydroxypyrazolo[4,3-d]pyrimidine

Chemical Property of 1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

Chemical Property:

• PSA: 94.40000
• LogP: -1.06050

Purity/Quality:

97% ^*data from raw suppliers

1H-Pyrazolo[4,3-D]pyrimidine-5,7(4H,6H)-dione ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione

There total 4 articles about 1H-Pyrazolo[4,3-d]pyrimidine-5,7(4H,6H)-dione 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:

6-(diazomethyl)-1,3-bis(methoxymethyl)uracil (1061224-64-3) → pyrazolo<4,3-d>pyrimidine-5,7-(1H,4H,6H)-dione (40769-81-1) + pyrazolo[4,3-d]pyrimidine-5,7(2H)-dione (1061224-66-5,135787-31-4,40769-81-1,135787-29-0,135787-30-3)

Guidance literature:

6-(diazomethyl)-1,3-bis(methoxymethyl)uracil; In toluene; at 110 ℃; for 6h;

With boron tribromide; In dichloromethane; at -78 - 20 ℃;

DOI:10.1002/hlca.200890132

Reference yield:

6-(diazomethyl)-1,3-bis(methoxymethyl)uracil (1061224-64-3) → pyrazolo<4,3-d>pyrimidine-5,7-(1H,4H,6H)-dione (40769-81-1) + pyrazolo[4,3-d]pyrimidine-5,7(2H)-dione (1061224-66-5,135787-31-4,40769-81-1,135787-29-0,135787-30-3)

Guidance literature:

6-(diazomethyl)-1,3-bis(methoxymethyl)uracil; In toluene; at 110 ℃; for 6h;

With boron tribromide; In dichloromethane; at -78 - 20 ℃;

DOI:10.1002/hlca.200890132

Reference yield:

4-aminopyrazole-3-carboxamide (67221-50-5) + urea (57-13-6) → pyrazolo<4,3-d>pyrimidine-5,7-(1H,4H,6H)-dione (40769-81-1)

Guidance literature:

DOI:10.1021/ja01592a021

upstream raw materials:

4-aminopyrazole-3-carboxamide

urea

6-(diazomethyl)-1,3-bis(methoxymethyl)uracil

Downstream raw materials:

3-chloro-1,4-dihydro-pyrazolo[4,3-d]pyrimidine-5,7-dione

4-(2,3,5-tri-O-benzyl-β-D-arabinofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7(1H,6H)-dione

1-(2,3,5-tri-O-benzyl-β-D-arabinofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7(4H,6H)-dione

4-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrazolo<4,3-d>pyrimidine-5,7-(1H,6H)-dione

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