ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate

Base Information

• Chemical Name: ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate
• CAS No.: 74597-91-4
• Molecular Formula: C₁₇H₁₈O₃S₂
• Molecular Weight: 334.46
• Mol file: 74597-91-4.mol

Synonyms:ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate

Chemical Property of ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

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Technology Process of ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate

There total 3 articles about ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-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: 75.0%

diazoacetic acid ethyl ester (623-73-4) + 3-(bis(benzylthio)methylene) pentane-2,4-dione (218941-38-9) → ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate (74597-91-4)

Guidance literature:

With copper dichloride; In toluene; acetonitrile; at 60 ℃; for 12h; Inert atmosphere;

DOI:10.1021/acs.joc.9b02982

Reference yield:

acetylacetone (123-54-6,81235-32-7) → ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate (74597-91-4)

Guidance literature:

Multi-step reaction with 2 steps

1: 1.) 85percent KOH / 1.) DMF, O deg C, 1,5 h, 2.) 0 deg C, 0.5 h

2: dimethylformamide / 2 h / Ambient temperature

With potassium hydroxide; In N,N-dimethyl-formamide;

Reference yield:

benzyl chloride (100-44-7) + ethyl 4-acetyl-5-mercapto-3-methylthiophen-2-carboxylate (74597-98-1) → ethyl 4-acetyl-5-(benzylthio)-3-methylthiophene-2-carboxylate (74597-91-4)

Guidance literature:

In N,N-dimethyl-formamide; for 2h; Yield given; Ambient temperature;

upstream raw materials:

benzyl chloride

ethyl 4-acetyl-5-mercapto-3-methylthiophen-2-carboxylate

acetylacetone

diazoacetic acid ethyl ester