2-Bromo-5-methoxythiophene

Base Information

• Chemical Name: 2-Bromo-5-methoxythiophene
• CAS No.: 57070-77-6
• Molecular Formula: C5H5BrOS
• Molecular Weight: 193.06200
• Hs Code.: 2934999090
• European Community (EC) Number: 887-682-0
• DSSTox Substance ID: DTXSID00576215
• Nikkaji Number: J3.178.589H
• Wikidata: Q82465790
• Mol file: 57070-77-6.mol

Synonyms:2-Bromo-5-methoxythiophene;57070-77-6;MFCD13190621;Thiophene, 2-bromo-5-methoxy-;SCHEMBL621820;DTXSID00576215;AKOS016007830;SY198416;CS-0239688;EN300-217754;N10622

Chemical Property of 2-Bromo-5-methoxythiophene

Chemical Property:

• Boiling Point: 92-93 °C(Press: 19 Torr)
• PSA: 37.47000
• Density: 1.623 g/cm3(Temp: 26 °C)
• LogP: 2.51920
• Storage Temp.: Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
• XLogP3: 2.9
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 1
• Exact Mass: 191.92445
• Heavy Atom Count: 8
• Complexity: 78.8

Purity/Quality:

97% ^*data from raw suppliers

2-Bromo-5-methoxythiophene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: COC1=CC=C(S1)Br

Technology Process of 2-Bromo-5-methoxythiophene

There total 1 articles about 2-Bromo-5-methoxythiophene 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: 100.0%

2-methoxythiophene (16839-97-7) → 5-bromo-2-methoxythiophene (57070-77-6)

Guidance literature:

With N-Bromosuccinimide; In tetrachloromethane; for 0.333333h; Reflux;

DOI:10.1021/acschemneuro.6b00252

Reference yield: 90.0%

5-bromo-2-methoxythiophene (57070-77-6) + N,N-dimethyl-formamide (68-12-2,33513-42-7) → 2-methoxythiophene-5-carbaldehyde (35087-46-8)

Guidance literature:

5-bromo-2-methoxythiophene; With n-butyllithium; In tetrahydrofuran; at -78 ℃; for 1h; Inert atmosphere;

N,N-dimethyl-formamide; In tetrahydrofuran; at -78 - 20 ℃; for 2.33333h; Inert atmosphere;

DOI:10.1016/j.bmcl.2015.11.010

Reference yield: 63.0%

5-bromo-2-methoxythiophene (57070-77-6) + 1-(5-((4-((trimethylsilyl)ethynyl)phenyl)ethynyl)thiophen-2-yl)ethanone (1431042-92-0) → 1-(5-((4-((5-methoxythiophen-2-yl)ethynyl)phenyl)ethynyl)thiophen-2-yl)ethanone (1431042-97-5)

Guidance literature:

With copper(l) iodide; bis(benzonitrile)palladium(II) dichloride; benzyltri(n-butyl)ammonium chloride; sodium hydroxide; tri tert-butylphosphoniumtetrafluoroborate; In water; toluene; at 40 ℃; for 18h; Inert atmosphere;

DOI:10.1002/chem.201203672

upstream raw materials:

2-methoxythiophene

Downstream raw materials:

5-methoxythiophene-2-carboxylic acid

((4-((5-methoxythiophen-2-yl)ethynyl)phenyl)ethynyl)trimethylsilane

2-methoxy-5-((4-((5-methylthiophen-2-yl)ethynyl)phenyl)ethynyl)thiophene

1-(5-((4-((5-methoxythiophen-2-yl)ethynyl)phenyl)ethynyl)thiophen-2-yl)ethanone