3,5-dibromo-1-methyl-1H-indole

Base Information

• Chemical Name: 3,5-dibromo-1-methyl-1H-indole
• CAS No.: 1198788-42-9
• Molecular Formula: C₉H₇Br₂N
• Molecular Weight: 288.969
• Mol file: 1198788-42-9.mol

Synonyms:3,5-dibromo-1-methyl-1H-indole

Chemical Property of 3,5-dibromo-1-methyl-1H-indole

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3,5-dibromo-1-methyl-1H-indole

There total 3 articles about 3,5-dibromo-1-methyl-1H-indole 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:

2,3,5,6-tetrabromo-1-methyl-1H-indole (25055-55-4) → 1-methylindole (603-76-9) + 5-bromo-1-methyl-H-indole (10075-52-2) + 3,5-dibromo-1-methyl-1H-indole (1198788-42-9) + 3-bromo-1-methyl-1H-indole (81471-20-7)

Guidance literature:

With sodium tetrahydroborate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH₂Cl₂; N,N,N,N,-tetramethylethylenediamine; In tetrahydrofuran; at 20 ℃; for 6h; regioselective reaction; Inert atmosphere;

DOI:10.1002/ejoc.201400032

Reference yield:

1-methylindole (603-76-9) → 5-bromo-1-methyl-H-indole (10075-52-2) + 3,5-dibromo-1-methyl-1H-indole (1198788-42-9) + 3-bromo-1-methyl-1H-indole (81471-20-7)

Guidance literature:

Multi-step reaction with 2 steps

1: N-Bromosuccinimide / tetrahydrofuran / 5 h / -78 °C / Inert atmosphere; Reflux

2: N,N,N,N,-tetramethylethylenediamine; sodium tetrahydroborate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH₂Cl₂ / tetrahydrofuran / 6 h / 20 °C / Inert atmosphere

With sodium tetrahydroborate; N-Bromosuccinimide; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH₂Cl₂; N,N,N,N,-tetramethylethylenediamine; In tetrahydrofuran;

DOI:10.1002/ejoc.201400032

Reference yield:

indole (120-72-9) → 5-bromo-1-methyl-H-indole (10075-52-2) + 3,5-dibromo-1-methyl-1H-indole (1198788-42-9) + 3-bromo-1-methyl-1H-indole (81471-20-7)

Guidance literature:

Multi-step reaction with 3 steps

1.1: sodium hydride / tetrahydrofuran / Inert atmosphere

1.2: 0.5 h / 0 - 20 °C / Inert atmosphere

2.1: N-Bromosuccinimide / tetrahydrofuran / 5 h / -78 °C / Inert atmosphere; Reflux

3.1: N,N,N,N,-tetramethylethylenediamine; sodium tetrahydroborate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH₂Cl₂ / tetrahydrofuran / 6 h / 20 °C / Inert atmosphere

With sodium tetrahydroborate; N-Bromosuccinimide; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH₂Cl₂; N,N,N,N,-tetramethylethylenediamine; sodium hydride; In tetrahydrofuran;

DOI:10.1002/ejoc.201400032

upstream raw materials:

1-methylindole

2,3,5,6-tetrabromo-1-methyl-1H-indole

indole