Methyl 2,5-diphenyl-3,4-dihydropyrazole-3-carboxylate

Base Information

• Chemical Name: Methyl 2,5-diphenyl-3,4-dihydropyrazole-3-carboxylate
• CAS No.: 17660-82-1
• Molecular Formula: C17H16N2O2
• Molecular Weight: 280.326
• DSSTox Substance ID: DTXSID10407607
• Nikkaji Number: J3.277.975A
• Mol file: 17660-82-1.mol

Synonyms:17660-82-1;ST50975536;DTXSID10407607;AKOS024351017

Chemical Property of Methyl 2,5-diphenyl-3,4-dihydropyrazole-3-carboxylate

Chemical Property:

• XLogP3: 3.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 4
• Exact Mass: 280.121177757
• Heavy Atom Count: 21
• Complexity: 396

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: COC(=O)C1CC(=NN1C2=CC=CC=C2)C3=CC=CC=C3

Technology Process of Methyl 2,5-diphenyl-3,4-dihydropyrazole-3-carboxylate

There total 7 articles about Methyl 2,5-diphenyl-3,4-dihydropyrazole-3-carboxylate 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: 86.0%

acrylic acid methyl ester (292638-85-8,9003-21-8,96-33-3) + benzaldehyde phenylhydrazone (588-64-7) → methyl 1,3-diphenyl-2-pyrazoline-5-carboxylate (17660-82-1)

Guidance literature:

With [bis(acetoxy)iodo]benzene; silica gel; for 0.05h; microwave irradiation;

Reference yield: 84.0%

sodium methylate (124-41-4) + benzaldehyde phenylhydrazone (588-64-7) + acrylic acid-terminated polyethylene glycol 4000 → methyl 1,3-diphenyl-2-pyrazoline-5-carboxylate (17660-82-1)

Guidance literature:

benzaldehyde phenylhydrazone; acrylic acid-terminated polyethylene glycol 4000; With [bis(acetoxy)iodo]benzene; for 0.0666667h; microwave irradiation;

sodium methylate; In methanol; at 20 ℃;

DOI:10.1081/SCC-200030984

Reference yield: 77.0%

acrylic acid methyl ester (292638-85-8,9003-21-8,96-33-3) + N-phenylbenzohydrazonoyl chloride (15424-14-3) → methyl 1,3-diphenyl-2-pyrazoline-5-carboxylate (17660-82-1)

Guidance literature:

With triethylamine; In dichloromethane; water; at 20 ℃; for 9h; Reagent/catalyst;

DOI:10.1002/ejoc.201300840

upstream raw materials:

acrylic acid methyl ester

N-phenylbenzohydrazonoyl chloride

methanol

acryloyl chloride