3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester

Base Information

• Chemical Name: 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester
• CAS No.: 468060-85-7
• Molecular Formula: C₁₈H₁₄O₅
• Molecular Weight: 310.306
• Mol file: 468060-85-7.mol

Synonyms:3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester

Chemical Property of 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester

There total 10 articles about 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester 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: 52.0%

3-methoxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester (468060-84-6) → 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester (468060-85-7)

Guidance literature:

With boron tribromide; In dichloromethane; at -78 - 20 ℃; for 8h;

DOI:10.1021/jm020839k

Reference yield:

p-cresol (106-44-5) → 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester (468060-85-7)

Guidance literature:

Multi-step reaction with 6 steps

1: pyridine

2: AlCl₃

3: 73 percent / pyridine / 0.5 h / 50 °C

4: 67 percent / pyridine; KOH / 1.5 h / 50 °C

5: 93 percent / conc. H₂SO₄ / acetic acid / 2 h / 80 °C

6: 52 percent / BBr₃ / CH₂Cl₂ / 8 h / -78 - 20 °C

With pyridine; potassium hydroxide; aluminium trichloride; sulfuric acid; boron tribromide; In dichloromethane; acetic acid; 2: Fries rearrangement / 3: Schotten-Baumann reaction / 4: Baker Venkataraman rearrangement;

DOI:10.1021/jm020839k

Reference yield:

5-methyl-2-hydroxyacetophenone (1450-72-2) → 3-hydroxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester (468060-85-7)

Guidance literature:

Multi-step reaction with 4 steps

1: 73 percent / pyridine / 0.5 h / 50 °C

2: 67 percent / pyridine; KOH / 1.5 h / 50 °C

3: 93 percent / conc. H₂SO₄ / acetic acid / 2 h / 80 °C

4: 52 percent / BBr₃ / CH₂Cl₂ / 8 h / -78 - 20 °C

With pyridine; potassium hydroxide; sulfuric acid; boron tribromide; In dichloromethane; acetic acid; 1: Schotten-Baumann reaction / 2: Baker Venkataraman rearrangement;

DOI:10.1021/jm020839k

upstream raw materials:

3-methoxy-5-(6-methyl-4-oxo-4H-chromen-2-yl)-benzoic acid methyl ester

p-cresol

5-methyl-2-hydroxyacetophenone

1-acetoxy-4-methylbenzene