ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

Base Information

• Chemical Name: ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate
• CAS No.: 128811-93-8
• Molecular Formula: C₁₈H₁₆BrNO₄S
• Molecular Weight: 422.299

Synonyms:ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

Chemical Property of ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

There total 6 articles about ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-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: 82.0%

2-Benzoylamino-3-ethoxycarbonyl-7-oxo-4,5,6,7-tetrahydrobenzothiophene (96334-43-9) → ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (128811-93-8)

Guidance literature:

With tetra-N-butylammonium tribromide; In methanol; dichloromethane; at 20 ℃; for 18h; Sealed tube;

DOI:10.1016/j.bmcl.2020.127348

Reference yield: 77.0%

2-Benzoylamino-3-ethoxycarbonyl-7-oxo-4,5,6,7-tetrahydrobenzothiophene (96334-43-9) → ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (128811-93-8)

Guidance literature:

With bromine; In chloroform; for 2h; Heating;

DOI:10.1007/BF00764415

Reference yield:

ethyl 2-cyanoacetate (105-56-6) → ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (128811-93-8)

Guidance literature:

Multi-step reaction with 4 steps

1: ethyl 6-bromo-2-(4-methoxybenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate; sulfur / 16 h / 20 °C

2: triethylamine / dichloromethane / 4 h / 20 °C / Inert atmosphere

3: dipotassium peroxodisulfate; copper(II) sulfate / acetonitrile; water / 4.5 h / 80 °C

4: tetra-N-butylammonium tribromide / dichloromethane; methanol / 18 h / 20 °C / Sealed tube

With sulfur; dipotassium peroxodisulfate; ethyl 6-bromo-2-(4-methoxybenzamido)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate; tetra-N-butylammonium tribromide; copper(II) sulfate; triethylamine; In methanol; dichloromethane; water; acetonitrile;

DOI:10.1016/j.bmcl.2020.127348

upstream raw materials:

2-Benzoylamino-3-ethoxycarbonyl-7-oxo-4,5,6,7-tetrahydrobenzothiophene

ethyl 2-cyanoacetate

ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

cyclohexanone

Downstream raw materials:

2-Benzoylamino-7-oxo-6-phenylsulfanyl-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid ethyl ester

Post a RFQ

Cas No.:

Product Name:

Quantity:

Please select Metric Ton KG G Pound L ML

Email:

Company name:

Valid Period:

Detailed Requirements:

• Sample
• MOQ
• GMP
• FDA
• Price
  FOB CIF CFR EXW
• Urgent purchase

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

Remove

Submit

1

What can I do for you?
Get Best Price

Get Best Price for 128811-93-8 ethyl 2-benzamido-6-bromo-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

Send

Send

Metric Ton KG G Pound L ML

Send

Send