5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one

Base Information

• Chemical Name: 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one
• CAS No.: 1360461-87-5
• Molecular Formula: C₁₈H₁₄N₄O
• Molecular Weight: 302.335
• Mol file: 1360461-87-5.mol

Synonyms:5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one

Chemical Property of 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

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Technology Process of 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one

There total 3 articles about 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-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: 15.0%

2,6-diphenyl-4H-pyrazolo[5,1-c][1,4]oxazin-4-one (1360461-78-4) → 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one (1360461-87-5) + 7-hydrazinyl-2,7-diphenyl-5,6,7,8-tetrahydro-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one

Guidance literature:

With hydrazine hydrate; In 2-ethoxy-ethanol; for 4h; Reflux;

DOI:10.1134/S1070428020040144

Reference yield:

7-hydrazinyl-2,7-diphenyl-5,6,7,8-tetrahydro-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one → 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one (1360461-87-5)

Guidance literature:

With acetic acid; In 2-ethoxy-ethanol; for 0.5h; Reflux;

DOI:10.1134/S1070428020040144

Reference yield:

methyl 1-(2-oxo-2-phenylethyl)-3-phenyl-1H-pyrazole-5-carboxylate → 5,8-dihydro-2,7-diphenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one (1360461-87-5)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium hydroxide

2.1: hydrazine hydrate / 2-ethoxy-ethanol / 4 h / Reflux

2.2: 0.5 h / Reflux

With hydrazine hydrate; sodium hydroxide; In 2-ethoxy-ethanol;

DOI:10.1134/S1070428020040144

upstream raw materials:

2,6-diphenyl-4H-pyrazolo[5,1-c][1,4]oxazin-4-one