4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester

Base Information

• Chemical Name: 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester
• CAS No.: 1027281-66-8
• Molecular Formula: C₂₁H₁₈O₅
• Molecular Weight: 350.371

Synonyms:4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester

Chemical Property of 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester

Chemical Property:

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Technology Process of 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester

There total 4 articles about 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-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:

7-methyl-2-benzofurancarboxaldehyde (57897-70-8) + methyl 4-acryloyl-benzoate (187401-48-5) → 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester (1027281-66-8)

Guidance literature:

With 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride; triethylamine; In N,N-dimethyl-formamide; at 80 ℃; for 0.5h;

DOI:10.1021/jm000098s

Reference yield:

7-methylbenzofuran (17059-52-8) → 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester (1027281-66-8)

Guidance literature:

Multi-step reaction with 2 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -30 °C

1.2: tetrahydrofuran; hexane / 0.5 h / -30 - 20 °C

2.1: 3-benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride; Et₃N / dimethylformamide / 0.5 h / 80 °C

With n-butyllithium; 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride; triethylamine; In tetrahydrofuran; hexane; N,N-dimethyl-formamide; 1.1: Metallation / 1.2: Formylation / 2.1: Addition;

DOI:10.1021/jm000098s

Reference yield:

1-(2,2-diethoxyethoxy)-2-methylbenzene (117516-63-9) → 4-[4-(7-methyl-benzofuran-2-yl)-4-oxo-butyryl]-benzoic acid methyl ester (1027281-66-8)

Guidance literature:

Multi-step reaction with 3 steps

1.1: polyphosphoric acid / toluene / 1 h / 90 °C

2.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -30 °C

2.2: tetrahydrofuran; hexane / 0.5 h / -30 - 20 °C

3.1: 3-benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride; Et₃N / dimethylformamide / 0.5 h / 80 °C

With n-butyllithium; PPA; 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride; triethylamine; In tetrahydrofuran; hexane; N,N-dimethyl-formamide; toluene; 1.1: Cyclization / 2.1: Metallation / 2.2: Formylation / 3.1: Addition;

DOI:10.1021/jm000098s

upstream raw materials:

7-methyl-2-benzofurancarboxaldehyde

methyl 4-acryloyl-benzoate

7-methylbenzofuran

1-(2,2-diethoxyethoxy)-2-methylbenzene

Downstream raw materials:

4-[5-(7-methyl-benzofuran-2-yl)-1H-pyrrol-2-yl]-benzoic acid methyl ester

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