2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol

Base Information

• Chemical Name: 2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol
• CAS No.: 124488-32-0
• Molecular Formula: C₂₀H₂₀O₃S
• Molecular Weight: 340.443
• Mol file: 124488-32-0.mol

Synonyms:2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol

Chemical Property of 2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

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Technology Process of 2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol

There total 1 articles about 2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol 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: 80.0%

3-isopropylthio-5-methyl-2-(α-methylcinnamoyl)-1,4-benzoquinone (124488-28-4) → 2,2,4,8-tetramethyl-7-phenyl-9H-<1,3>oxathiolo<4,5-f><1>benzopyran-9-one + 2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol (124488-32-0)

Guidance literature:

In benzene; for 1.5h;

DOI:10.1246/bcsj.62.3479

Reference yield: 63.0%

2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol (124488-32-0) → 2,2,4,8-tetramethyl-7-phenyl-7,8-dihydro<1,3>oxathiolo<4,5-f><1>-benzopyran-9-one

Guidance literature:

With chloroacetic acid; In benzene; at 40 ℃; for 48h;

DOI:10.1246/bcsj.62.3479

Reference yield:

2,2,4,8-tetramethyl-5-phenyl-5H-pyrano<4,3,2-de><3,1>benzoxathiin-9-ol (124488-32-0) + methyl iodide (74-88-4) → 6-methoxy-3,7-dimethyl-2-phenyl-4-chromanone

Guidance literature:

With potassium carbonate; nickel; Yield given. Multistep reaction; 1.) acetone, 2.) aq. EtOH, reflux, 2 h;

DOI:10.1246/bcsj.62.3479

upstream raw materials:

3-isopropylthio-5-methyl-2-(α-methylcinnamoyl)-1,4-benzoquinone