4,9-Diethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one

Base Information

• Chemical Name: 4,9-Diethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one
• CAS No.: 86397-43-5
• Molecular Formula: C₁₆H₁₆O₅
• Molecular Weight: 288.3
• Hs Code.: 2932999099
• DSSTox Substance ID: DTXSID70511153
• Wikidata: Q82369799
• Mol file: 86397-43-5.mol

Synonyms:86397-43-5;4,9-DIETHOXY-7-METHYL-5H-FURO[3,2-G]CHROMEN-5-ONE;DTXSID70511153;4,9-Diethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one;AKOS015965812;4,9-Diethoxy-7-methyl-furo[3,2-g]ch

Chemical Property of 4,9-Diethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one

Chemical Property:

• Vapor Pressure: 1.71E-08mmHg at 25°C
• Boiling Point: 455.8oC at 760 mmHg
• Flash Point: 229.4oC
• PSA: 61.81000
• Density: 1.237g/cm3
• LogP: 3.64500
• XLogP3: 3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 5
• Rotatable Bond Count: 4
• Exact Mass: 288.09977361
• Heavy Atom Count: 21
• Complexity: 432

Purity/Quality:

4,9-DIETHOXY-7-METHYL-FURO(3,2-G)CHROMEN-5-ONE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: CCOC1=C2C(=O)C=C(OC2=C(C3=C1C=CO3)OCC)C

Technology Process of 4,9-Diethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one

There total 3 articles about 4,9-Diethoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-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:

Khellin (82-02-0) → 4,9-diethoxy-7-methyl-furo[3,2-g]chromen-5-one (86397-43-5)

Guidance literature:

Multi-step reaction with 2 steps

1: 90 percent / BBr₃ / CH₂Cl₂ / -78 - -20 °C

2: cesium carbonate / 6 h / 20 °C

With boron tribromide; caesium carbonate; In dichloromethane;

DOI:10.1021/jm050839v

Reference yield:

4,9-Dihydroxy-7-methyl-5H-furo<3,2-g><1>benzopyran-5-one (2159-83-3) → 4,9-diethoxy-7-methyl-furo[3,2-g]chromen-5-one (86397-43-5)

Guidance literature:

With potassium carbonate; ethyl iodide; acetone;

DOI:10.1021/ja01164a022

Reference yield:

4,9-Dihydroxy-7-methyl-5H-furo<3,2-g><1>benzopyran-5-one (2159-83-3) + ethyl iodide (75-03-6) → 4,9-diethoxy-7-methyl-furo[3,2-g]chromen-5-one (86397-43-5)

Guidance literature:

With caesium carbonate; at 20 ℃; for 6h;

DOI:10.1021/jm050839v

upstream raw materials:

4,9-Dihydroxy-7-methyl-5H-furo<3,2-g><1>benzopyran-5-one

ethyl iodide

Khellin