4H-1-Benzopyran-4-one, 5-Methoxy-7-Methyl-

Base Information

• Chemical Name: 4H-1-Benzopyran-4-one, 5-Methoxy-7-Methyl-
• CAS No.: 78274-05-2
• Molecular Formula: C₁₁H₁₀O₃
• Molecular Weight: 190.199
• Hs Code.: 2914509090
• Mol file: 78274-05-2.mol

Synonyms:4H-1-Benzopyran-4-one, 5-Methoxy-7-Methyl-;5-Methoxy-7-methyl-4H-chromen-4-one

Chemical Property of 4H-1-Benzopyran-4-one, 5-Methoxy-7-Methyl-

Chemical Property:

• PSA: 39.44000
• LogP: 2.11000
• Storage Temp.: 2-8°C

Purity/Quality:

99% ^*data from raw suppliers

5-Methoxy-7-methyl-4H-chromen-4-one 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4H-1-Benzopyran-4-one, 5-Methoxy-7-Methyl-

There total 2 articles about 4H-1-Benzopyran-4-one, 5-Methoxy-7-Methyl- 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: 43.0%

1-(3-Dimethylamino-acryloyl)-2-hydroxy-4-methyl-6-methoxy-benzol (78274-04-1) → 7-Methyl-5-methoxy-4H-benzopyran-4-on (78274-05-2)

Guidance literature:

With sulfuric acid;

DOI:10.1002/ardp.19813140307

Reference yield:

1-(2-hydroxy-6-methoxy-4-methylphenyl)ethanone (31405-63-7) → 7-Methyl-5-methoxy-4H-benzopyran-4-on (78274-05-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 63 percent / xylene

2: 43 percent / aq. H₂SO₄

With sulfuric acid; In xylene;

DOI:10.1002/ardp.19813140307

upstream raw materials:

1-(3-Dimethylamino-acryloyl)-2-hydroxy-4-methyl-6-methoxy-benzol

1-(2-hydroxy-6-methoxy-4-methylphenyl)ethanone

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