3-Diazo-4-methyl-5-phenylpyrazole

Base Information

• Chemical Name: 3-Diazo-4-methyl-5-phenylpyrazole
• CAS No.: 62072-08-6
• Molecular Formula: C10H8N4
• Molecular Weight: 184.2
• DSSTox Substance ID: DTXSID90507114
• Wikidata: Q82363157

Synonyms:3-diazo-4-methyl-5-phenylpyrazole;62072-08-6;DTXSID90507114;3-Diazo-4-methyl-5-phenyl-3H-pyrazole

Chemical Property of 3-Diazo-4-methyl-5-phenylpyrazole

Chemical Property:

• XLogP3: 2.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 1
• Exact Mass: 184.074896272
• Heavy Atom Count: 14
• Complexity: 341

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: CC1=C(N=NC1=[N+]=[N-])C2=CC=CC=C2

Technology Process of 3-Diazo-4-methyl-5-phenylpyrazole

There total 2 articles about 3-Diazo-4-methyl-5-phenylpyrazole 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: 88.0%

4-Methyl-5-phenyl-3-pyrazolediazonium Chloride (85939-82-8) → 3-Diazo-4-methyl-5-phenyl-3H-pyrazol (62072-08-6)

Guidance literature:

With sodium carbonate; In dichloromethane; at 0 ℃; for 0.166667h;

DOI:10.1021/jo00162a007

Reference yield:

4-methyl-5-phenyl-1H-pyrazol-3-amine (66367-67-7) → 3-Diazo-4-methyl-5-phenyl-3H-pyrazol (62072-08-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 62 percent / conc. hydrochloric acid, NaNO₂ / H₂O / 30 h / 0 - 5 °C

2: 88 percent / 10percent aq. Na₂CO₃ / CH₂Cl₂ / 0.17 h / 0 °C

With hydrogenchloride; sodium carbonate; sodium nitrite; In dichloromethane; water;

DOI:10.1021/jo00162a007

Reference yield: 90.0%

(E)-N,N-diethyl-2-phenylethen-1-amine (82489-29-0) + 3-Diazo-4-methyl-5-phenyl-3H-pyrazol (62072-08-6) → 3,7-Diphenyl-8-methylpyrazolo<5,1-c><1,2,4>triazine (85939-75-9)

Guidance literature:

In chloroform; at 25 ℃; for 24h;

DOI:10.1021/jo00162a007

upstream raw materials:

4-Methyl-5-phenyl-3-pyrazolediazonium Chloride

4-methyl-5-phenyl-1H-pyrazol-3-amine

Downstream raw materials:

7-Methoxy-7a-methyl-1-phenyl-4H-pyrazolo<3,4-c>pyridazine

4-Methoxy-7-phenyl-8-methylpyrazolo<5,1-c><1,2,4>triazine

2-Ethoxy-3,3,7-trimethyl-8-phenyl-1,4,5,9-tetraazabicyclo<4.3.0>nona-4,6,8-triene

4-(Diethylamino)-3,4-dihydro-7-phenyl-3,3,8-trimethylpyrazolo<5,1-c><1,2,4>triazine

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