Pyrazolo[1,5-a]pyrimidine-4(5H)-carboxaldehyde, 6,7-dihydro- (9CI)

Base Information

• Chemical Name: Pyrazolo[1,5-a]pyrimidine-4(5H)-carboxaldehyde, 6,7-dihydro- (9CI)
• CAS No.: 126352-82-7
• Molecular Formula: C₇H₉N₃O
• Molecular Weight: 151.168
• Hs Code.: 2933990090
• Mol file: 126352-82-7.mol

Synonyms:Pyrazolo[1,5-a]pyrimidine-4(5H)-carboxaldehyde, 6,7-dihydro- (9CI)

Chemical Property of Pyrazolo[1,5-a]pyrimidine-4(5H)-carboxaldehyde, 6,7-dihydro- (9CI)

Chemical Property:

• PSA: 38.13000
• LogP: 0.95050

Purity/Quality:

95% ^*data from raw suppliers

6,7-Dihydropyrazolo[1,5-a]pyrimidine-4(5H)-carbaldehyde 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Pyrazolo[1,5-a]pyrimidine-4(5H)-carboxaldehyde, 6,7-dihydro- (9CI)

There total 4 articles about Pyrazolo[1,5-a]pyrimidine-4(5H)-carboxaldehyde, 6,7-dihydro- (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:

sodium hydrogencarbonate (144-55-8) + 4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (126352-69-0) → 4-formyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (126352-82-7)

Guidance literature:

With formic acid; acetic anhydride; In dichloromethane;

Reference yield:

6-hydroxy-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine → 4-formyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (126352-82-7)

Guidance literature:

Reference yield:

formic acid (64-18-6) + 4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (126352-69-0) → 4-formyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine (126352-82-7)

Guidance literature:

With acetic anhydride; Multistep reaction; 1.) 40 deg C, 45 min, 2.) RT, 30 min;

DOI:10.1016/S0968-0896(96)00270-2

upstream raw materials:

formic acid

4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine

sodium hydrogencarbonate

Downstream raw materials:

3-nitro-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine

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