4-Bromo-2,5-dimethoxy-phenol

Base Information

• Chemical Name: 4-Bromo-2,5-dimethoxy-phenol
• CAS No.: 557757-32-1
• Molecular Formula: C8H9BrO3
• Molecular Weight: 233.062
• Hs Code.: 2909500090
• UNII: I1QGL66WI0
• DSSTox Substance ID: DTXSID30461286
• Nikkaji Number: J1.889.400I
• Wikidata: Q82285561
• Mol file: 557757-32-1.mol

Synonyms:4-Bromo-2,5-dimethoxy-phenol;557757-32-1;4-Bromo-2,5-dimethoxyphenol;4-Bromo-2,5-dimethoxyphemol;I1QGL66WI0;Phenol, 4-bromo-2,5-dimethoxy-;UNII-I1QGL66WI0;SCHEMBL19361333;DTXSID30461286;MFCD06409235;AB23806;CS-0130608;E89985

Chemical Property of 4-Bromo-2,5-dimethoxy-phenol

Chemical Property:

• Vapor Pressure: 0.000412mmHg at 25°C
• Boiling Point: 307oC at 760 mmHg
• Flash Point: 139.5oC
• PSA: 38.69000
• Density: 1.532g/cm3
• LogP: 2.17190
• XLogP3: 2.2
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 2
• Exact Mass: 231.97351
• Heavy Atom Count: 12
• Complexity: 142

Purity/Quality:

99%, ^*data from raw suppliers

4-Bromo-2,5-dimethoxyphenol ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: COC1=CC(=C(C=C1O)OC)Br

Technology Process of 4-Bromo-2,5-dimethoxy-phenol

There total 5 articles about 4-Bromo-2,5-dimethoxy-phenol 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: 99.0%

4-bromo-2,5-dimethoxybenzaldehyde (31558-41-5) → 4-bromo-2,5-dimethoxyphenol (557757-32-1)

Guidance literature:

4-bromo-2,5-dimethoxybenzaldehyde; With 3-chloro-benzenecarboperoxoic acid; In dichloromethane; at 25 ℃; for 4h;

With sodium hydroxide; In methanol; at 25 ℃; for 1h;

DOI:10.1016/S0040-4039(03)00629-4

Reference yield: 36.0%

4-bromo-6,6-dimethoxy-2,4-cyclohexadien-1-one (376396-10-0) + 1,3-Dimethoxybenzene (151-10-0) → 4-bromoguaiacol (7368-78-7) + 4-bromo-2,5-dimethoxyphenol (557757-32-1)

Guidance literature:

With boron trifluoride diethyl etherate; at 20 ℃; for 0.0166667h;

DOI:10.1021/acs.joc.7b00684

Reference yield:

C9H9BrO5 → 4-bromo-2,5-dimethoxyphenol (557757-32-1)

Guidance literature:

With sodium hydroxide; In methanol; dichloromethane; at 20 ℃; for 3h;

DOI:10.1039/c3ob41264d

upstream raw materials:

4-bromo-2,5-dimethoxybenzaldehyde

2,5-dimethoxybenzaldehyde

4-bromo-6,6-dimethoxy-2,4-cyclohexadien-1-one

1,3-Dimethoxybenzene

Downstream raw materials:

(4-bromo-2,5-dimethoxyphenoxy)(tert-butyl)dimethylsilane

tert-butyl(2,5-dimethoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)dimethylsilane

[2,5-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-[5,8-bis-(2-methoxy-ethoxymethoxy)-2,2-dimethyl-2H-chromen-6-yl]-methanone

[2,5-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-[5,8-bis-(2-methoxy-ethoxymethoxy)-2,2-dimethyl-2H-chromen-6-yl]-methanol

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