5,7-Bis(acetyloxy)-3-[4-[[(1,1-diMethylethyl)diMethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-one

Base Information

• Chemical Name: 5,7-Bis(acetyloxy)-3-[4-[[(1,1-diMethylethyl)diMethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-one
• CAS No.: 656229-80-0
• Molecular Formula: C25H28O7Si
• Molecular Weight: 468.57100
• Mol file: 656229-80-0.mol

Synonyms:5,7-Bis(acetyloxy)-3-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-one;

Chemical Property of 5,7-Bis(acetyloxy)-3-[4-[[(1,1-diMethylethyl)diMethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-one

Chemical Property:

• Melting Point: 126-128 °C
• Boiling Point: 547.9±50.0 °C(Predicted)
• PSA: 92.04000
• Density: 1.180±0.06 g/cm3(Predicted)
• LogP: 5.69460
• Storage Temp.: Refrigerator, under inert atmosphere
• Solubility.: Chloroform, Ethyl Acetate, Methanol

Purity/Quality:

99% ^*data from raw suppliers

5,7-Bis(acetyloxy)-3-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-one ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 5-(Acetyloxy)-3-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-7-hydroxy-4H-1-benzopyran-4-one is an protected intermediate of Genistein (G350000).

Technology Process of 5,7-Bis(acetyloxy)-3-[4-[[(1,1-diMethylethyl)diMethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-one

There total 7 articles about 5,7-Bis(acetyloxy)-3-[4-[[(1,1-diMethylethyl)diMethylsilyl]oxy]phenyl]-4H-1-benzopyran-4-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: 85.0%

acetic anhydride (108-24-7) + 7-(tert-butyldimethylsilyloxy)-3-[4-(tert-butyldimethylsilyloxy)phenyl]-5-hydroxy-4H-chromen-4-one (470666-98-9) → acetic acid 7-acetoxy-3-[4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-4-oxo-4H-chromen-5-yl ester (656229-80-0)

Guidance literature:

With pyridine; at 20 ℃; for 96h;

DOI:10.1081/SCC-120026353

Reference yield: 82.0%

acetic anhydride (108-24-7) + 3-[4-(tert-butyldimethylsilyloxy)phenyl]-5,7-dihydroxy-4H-chromen-4-one (470666-97-8) → acetic acid 7-acetoxy-3-[4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-4-oxo-4H-chromen-5-yl ester (656229-80-0)

Guidance literature:

With pyridine; at 20 ℃; for 96h;

DOI:10.1081/SCC-120026353

Reference yield: 49.0%

acetyl chloride (75-36-5) + 7-(tert-butyldimethylsilyloxy)-3-[4-(tert-butyldimethylsilyloxy)phenyl]-5-hydroxy-4H-chromen-4-one (470666-98-9) → acetic acid 7-acetoxy-3-[4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-4-oxo-4H-chromen-5-yl ester (656229-80-0) + acetic acid 7-(tert-butyl-dimethyl-silanyloxy)-3-[4-(tert-butyl-dimethyl-silanyloxy)-phenyl]-4-oxo-4H-chromen-5-yl ester

Guidance literature:

With pyridine; at 20 ℃; for 24h;

DOI:10.1081/SCC-120026353

upstream raw materials:

acetic anhydride

3-[4-(tert-butyldimethylsilyloxy)phenyl]-5,7-dihydroxy-4H-chromen-4-one

7-(tert-butyldimethylsilyloxy)-3-[4-(tert-butyldimethylsilyloxy)phenyl]-5-hydroxy-4H-chromen-4-one

acetyl chloride

Downstream raw materials:

acetic acid 7-acetoxy-3-(4-hydroxy-phenyl)-4-oxo-4H-chromen-5-yl ester

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