4-HYDROXY-6 7-DIMETHYLCOUMARIN 98

Base Information

• Chemical Name: 4-HYDROXY-6 7-DIMETHYLCOUMARIN 98
• CAS No.: 55004-77-8
• Molecular Formula: C11H10O3
• Molecular Weight: 190.199
• Hs Code.: 2932209090
• Mol file: 55004-77-8.mol

Synonyms:4-Hydroxy-6,7-dimethyl-2H-1-benzopyran-2-one;4-Hydroxy-6,7-dimethylcoumarin;6,7-Dimethyl-4-hydroxycoumarin;

Chemical Property of 4-HYDROXY-6 7-DIMETHYLCOUMARIN 98

Chemical Property:

• Vapor Pressure: 2.56E-09mmHg at 25°C
• Melting Point: 248-251 °C(lit.)
• Boiling Point: 378.1 °C at 760 mmHg
• PKA: 4.50±1.00(Predicted)
• Flash Point: 170.7 °C
• PSA: 50.44000
• Density: 1.315 g/cm³
• LogP: 2.11540

Purity/Quality:

98%Min ^*data from raw suppliers

4-Hydroxy-6,7-dimethylcoumarin ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-HYDROXY-6 7-DIMETHYLCOUMARIN 98

There total 6 articles about 4-HYDROXY-6 7-DIMETHYLCOUMARIN 98 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:

2-acetyl-4,5-dimethylphenol (36436-65-4) + Diethyl carbonate (105-58-8,76619-83-5) → 4-hydroxy-6,7-dimethylcoumarin (55004-77-8)

Guidance literature:

With sodium hydride; In toluene; at 120 ℃; for 1h; Inert atmosphere;

DOI:10.1021/ol802792g

Reference yield:

3,4-Dimethylphenol (95-65-8) → 4-hydroxy-6,7-dimethylcoumarin (55004-77-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 90 °C

2: Eaton’s reagent / 5 h / 75 °C

With Eaton’s reagent;

DOI:10.1002/ejoc.201900649

Reference yield:

C11H12O4 → 4-hydroxy-6,7-dimethylcoumarin (55004-77-8)

Guidance literature:

With Eaton’s reagent; at 75 ℃; for 5h;

DOI:10.1002/ejoc.201900649

upstream raw materials:

2-acetyl-4,5-dimethylphenol

Diethyl carbonate

3,4-Dimethylphenol

3,4-dimethylphenyl acetate

Downstream raw materials:

5-(2-Hydroxy-4,5-dimethyl-phenyl)-2-methyl-2,4-dihydro-pyrazol-3-one

6,7-dimethyl-4-tosyloxycoumarin

4-(4-methoxyphenyl)-6,7-dimethyl-2H-chromen-2-one

C₁₇H₁₃ClO₂

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