3-methyl-1-(p-tolyl)chromeno[4,3-c]pyrazol-4(1H)-one

Base Information

• Chemical Name: 3-methyl-1-(p-tolyl)chromeno[4,3-c]pyrazol-4(1H)-one
• CAS No.: 110570-18-8
• Molecular Formula: C18H14N2O2
• Molecular Weight: 290.321
• ChEMBL ID: CHEMBL317599
• DSSTox Substance ID: DTXSID30553079
• Nikkaji Number: J270.499D
• Wikidata: Q82433577
• Mol file: 110570-18-8.mol

Synonyms:110570-18-8;3-methyl-1-(p-tolyl)chromeno[4,3-c]pyrazol-4(1H)-one;CHEMBL317599;DTXSID30553079;BDBM50297714;3-Methyl-1-(4-methylphenyl)[1]benzopyrano[4,3-c]pyrazol-4(1H)-one

Chemical Property of 3-methyl-1-(p-tolyl)chromeno[4,3-c]pyrazol-4(1H)-one

Chemical Property:

• XLogP3: 3.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 290.105527694
• Heavy Atom Count: 22
• Complexity: 433

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CC=C(C=C1)N2C3=C(C(=N2)C)C(=O)OC4=CC=CC=C43

Technology Process of 3-methyl-1-(p-tolyl)chromeno[4,3-c]pyrazol-4(1H)-one

There total 5 articles about 3-methyl-1-(p-tolyl)chromeno[4,3-c]pyrazol-4(1H)-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: 91.0%

C18H16N2O2 → 3-methyl-1-(4-methylphenyl)chromeno[4,3-c]pyrazol-4(1H)-one (110570-18-8)

Guidance literature:

With copper(ll) sulfate pentahydrate; In ethanol; at 80 ℃; for 4h;

DOI:10.1002/jhet.2052

Reference yield: 78.0%

4-Hydroxy-3-[1-(p-tolyl-hydrazono)-ethyl]-chromen-2-one (110570-04-2) → 3-methyl-1-(4-methylphenyl)chromeno[4,3-c]pyrazol-4(1H)-one (110570-18-8)

Guidance literature:

With toluene-4-sulfonic acid; In xylene;

DOI:10.1021/jm00396a001

Reference yield:

3-acetyl-4-hydroxychromen-2-one (2555-37-5) → 3-methyl-1-(4-methylphenyl)chromeno[4,3-c]pyrazol-4(1H)-one (110570-18-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 85 percent / ethanol / Heating

2: 78 percent / p-TsOH / xylene

With toluene-4-sulfonic acid; In ethanol; xylene;

DOI:10.1021/jm00396a001

upstream raw materials:

4-Hydroxy-3-[1-(p-tolyl-hydrazono)-ethyl]-chromen-2-one

3-acetyl-4-hydroxychromen-2-one

p-tolylhydrazine hydrochloride