1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole

Base Information

• Chemical Name: 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole
• CAS No.: 742-01-8
• Molecular Formula: C21H18N2
• Molecular Weight: 298.387
• Hs Code.: 2933199090
• European Community (EC) Number: 616-061-7
• NSC Number: 43681
• DSSTox Substance ID: DTXSID201032690
• Nikkaji Number: J52.367D
• ChEMBL ID: CHEMBL2136015
• Mol file: 742-01-8.mol

Synonyms:1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole;742-01-8;1,3,5-triphenyl-2-pyrazoline;Luminor 8;1H-Pyrazole, 4,5-dihydro-1,3,5-triphenyl-;Luminor Red-Violet 440 RT;Red-Violet 440 RT;1,3,5-Triphenylpyrazoline;2,3,5-triphenyl-3,4-dihydropyrazole;KF 440RT;Luminofor Red-Violet 440 RT;4,5-Dihydro-1,3,5-triphenyl-1H-pyrazole;VU0466999-1;1H-Pyrazole,4,5-dihydro-1,3,5-triphenyl-;cid_95937;SCHEMBL395608;CHEMBL2136015;BDBM91543;FGCZQOHSWGMVPN-UHFFFAOYSA-;DTXSID201032690;2-Pyrazoline, 1,3,5-triphenyl-;NSC43681;NSC 43681;NSC-43681;STK386368;AKOS000668817;AKOS016245243;LS-128464;CS-0314573;FT-0711812;VU0466999-2;VU0466999-3;1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole #;2-Pyrazoline, 1,3,5-triphenyl- (6CI,8CI);6N-713;EN300-107410;Z56759905;F1550-0062

Chemical Property of 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole

Chemical Property:

• Vapor Pressure: 1.99E-08mmHg at 25°C
• Melting Point: 139-141℃
• Refractive Index: 1.624
• Boiling Point: 453.9 °C at 760 mmHg
• PKA: -0.10±0.70(Predicted)
• Flash Point: 228.3 °C
• PSA: 15.60000
• Density: 1.09 g/cm³
• LogP: 4.54290
• XLogP3: 5
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 3
• Exact Mass: 298.146998583
• Heavy Atom Count: 23
• Complexity: 398

Purity/Quality:

99% ^*data from raw suppliers

1,3,5-TRIPHENYL-2-PYRAZOLINE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1C(N(N=C1C2=CC=CC=C2)C3=CC=CC=C3)C4=CC=CC=C4

Technology Process of 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole

There total 50 articles about 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole 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: 98.0%

benzalacetophenone (94-41-7) + phenylhydrazine (100-63-0) → 1,3,5-triphenyl-4,5-dihydro-1H-pyrazole (742-01-8)

Guidance literature:

With tungstophosphoric acid supported on polyamide; In ethanol; at 45 ℃; for 3h;

DOI:10.1016/S1872-2067(10)60203-3

Reference yield: 95.0%

phenylhydrazine (100-63-0) + 1,3-diphenyl-propen-3-one (614-47-1) → 1,3,5-triphenyl-4,5-dihydro-1H-pyrazole (742-01-8)

Guidance literature:

In ethanol; for 48h; Ambient temperature;

DOI:10.1002/jhet.5570220617

Reference yield: 90.0%

phenylhydrazine hydrochloride (59-88-1) + benzalacetophenone (94-41-7) → 1,3,5-triphenyl-4,5-dihydro-1H-pyrazole (742-01-8)

Guidance literature:

With sodium acetate; acetic acid; In water; at 30 ℃; for 2h; Sonication;

DOI:10.1039/C8NJ05017A

upstream raw materials:

pyridine

1,5-Diphenyl-2-pyrazolin

benzene diazonium chloride

1,3,5-triphenyl-1H-pyrazole

Downstream raw materials:

1,3,5-triphenyl-1H-pyrazole

C₂₂H₁₈ClN₃O₃S

[4-(3,5-Diphenyl-4,5-dihydro-pyrazol-1-yl)-phenyl]-(4-nitro-phenyl)-diazene

[4-(3,5-Diphenyl-4,5-dihydro-pyrazol-1-yl)-phenyl]-phenyl-diazene