methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate

Base Information

• Chemical Name: methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate
• CAS No.: 1400815-92-0
• Molecular Formula: C₁₉H₁₆O₄
• Molecular Weight: 308.334
• Mol file: 1400815-92-0.mol

Synonyms:methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate

Chemical Property of methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

Useful:

Technology Process of methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate

There total 2 articles about methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate 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%

6,7-dimethyl-4-oxo-2-phenyl-4H-1-benzopyran-8-carboxylic acid (129696-93-1) + diazomethyl-trimethyl-silane (18107-18-1) → methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate (1400815-92-0)

Guidance literature:

In methanol; diethyl ether; at 20 ℃; for 24h;

DOI:10.1016/j.ejmech.2012.07.028

Reference yield:

3-cyano-4,5-dimethyl-2-benzoyloxyacetophenone (129696-70-4) → methyl 6,7-dimethyl-4-oxo-2-phenyl-4H-chromene-8-carboxylate (1400815-92-0)

Guidance literature:

Multi-step reaction with 3 steps

1.1: pyridine; potassium hydroxide / Heating

1.2: Reflux

2.1: Acidic conditions

3.1: methanol; diethyl ether / 24 h / 20 °C

With pyridine; potassium hydroxide; In methanol; diethyl ether;

DOI:10.1016/j.ejmech.2012.07.028

upstream raw materials:

6,7-dimethyl-4-oxo-2-phenyl-4H-1-benzopyran-8-carboxylic acid

diazomethyl-trimethyl-silane

3-cyano-4,5-dimethyl-2-benzoyloxyacetophenone