5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one

Base Information

• Chemical Name: 5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one
• CAS No.: 64620-10-6
• Molecular Formula: C₂₁H₂₀O₄
• Molecular Weight: 336.387

Synonyms:5-methoxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one

Chemical Property of 5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one

Chemical Property:

Purity/Quality:

98%min ^*data from raw suppliers

5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one

There total 4 articles about 5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-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: 86.0%

5-hydroxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one (23708-08-9) + dimethyl sulfate (77-78-1) → 5-methoxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one (64620-10-6)

Guidance literature:

With potassium carbonate; In acetone; for 2h; Heating;

DOI:10.1007/s10600-006-0060-3

Reference yield: 63.0%

3,4-Dihydro-5-hydroxy-7-methoxy-2,2-dimethyl-2H-1-benzopyran (883-75-0) + ethyl 3-oxo-3-phenylpropionate (94-02-0) → 5-methoxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one (64620-10-6) + 5-hydroxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one (23708-08-9)

Guidance literature:

With sulfuric acid; In ethanol; at 50 ℃; for 4h;

DOI:10.1007/s10600-006-0060-3

Reference yield:

ethyl 3-oxo-3-phenylpropionate (94-02-0) → 5-methoxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one (64620-10-6)

Guidance literature:

Multi-step reaction with 2 steps

1: 63 percent / H₂SO₄ / ethanol / 4 h / 50 °C

2: 86 percent / K₂CO₃ / acetone / 2 h / Heating

With sulfuric acid; potassium carbonate; In ethanol; acetone; 1: Pechmann condensation;

DOI:10.1007/s10600-006-0060-3

upstream raw materials:

5-hydroxy-8,8-dimethyl-4-phenyl-9,10-dihydropyrano[2,3-f]chromen-2-one

dimethyl sulfate

3,4-Dihydro-5-hydroxy-7-methoxy-2,2-dimethyl-2H-1-benzopyran

ethyl 3-oxo-3-phenylpropionate

Post a RFQ

Cas No.:

Product Name:

Quantity:

Please select Metric Ton KG G Pound L ML

Email:

Company name:

Valid Period:

Detailed Requirements:

• Sample
• MOQ
• GMP
• FDA
• Price
  FOB CIF CFR EXW
• Urgent purchase

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

Remove

Submit

1

What can I do for you?
Get Best Price

Get Best Price for 64620-10-6 5-Methoxy-8,8-dimethyl-4-phenyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one

Send

Send

Metric Ton KG G Pound L ML

Send

Send