DL-1,4-Phenylenbis(bromessigsaeure)

Base Information

• Chemical Name: DL-1,4-Phenylenbis(bromessigsaeure)
• CAS No.: 106064-64-6
• Molecular Formula: C₁₀H₈Br₂O₄
• Molecular Weight: 351.979
• Mol file: 106064-64-6.mol

Synonyms:

Chemical Property of DL-1,4-Phenylenbis(bromessigsaeure)

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of DL-1,4-Phenylenbis(bromessigsaeure)

There total 3 articles about DL-1,4-Phenylenbis(bromessigsaeure) 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:

terephthalaldehyde, (623-27-8) → DL-1,4-Phenylenbis(bromessigsaeure) (106064-64-6)

Guidance literature:

Multi-step reaction with 4 steps

1: NaHSO₃ / H₂O / 4 h / 5 - 10 °C

2: conc. HCl / 1.) 12 h, room temp.; 2.) 2 h, 60-70 deg C

3: conc. HCl / 0.25 h

4: 1.) 63percent aqu. HBr; 2.) 80percent H₂SO₄ / 1.) 4 d, room temp.; 2.) 2 h, 120 deg C; 3.) 1 h, 100 deg C

With hydrogenchloride; sulfuric acid; hydrogen bromide; sodium hydrogensulfite; In water;

Reference yield:

α,α'-dihydroxy-1,4-benzenediacetonitrile (58594-70-0) → DL-1,4-Phenylenbis(bromessigsaeure) (106064-64-6)

Guidance literature:

Multi-step reaction with 3 steps

1: conc. HCl / 1.) 12 h, room temp.; 2.) 2 h, 60-70 deg C

2: conc. HCl / 0.25 h

3: 1.) 63percent aqu. HBr; 2.) 80percent H₂SO₄ / 1.) 4 d, room temp.; 2.) 2 h, 120 deg C; 3.) 1 h, 100 deg C

With hydrogenchloride; sulfuric acid; hydrogen bromide;

Reference yield:

DL-1,4-Phenylenbis(hydroxyessigsaeure) (106064-63-5) → DL-1,4-Phenylenbis(bromessigsaeure) (106064-64-6)

Guidance literature:

Multi-step reaction with 2 steps

1: conc. HCl / 0.25 h

2: 1.) 63percent aqu. HBr; 2.) 80percent H₂SO₄ / 1.) 4 d, room temp.; 2.) 2 h, 120 deg C; 3.) 1 h, 100 deg C

With hydrogenchloride; sulfuric acid; hydrogen bromide;

upstream raw materials:

α,α'-dihydroxy-1,4-benzenediacetonitrile

terephthalaldehyde,

DL-1,4-Phenylenbis(hydroxyessigsaeure)

Downstream raw materials:

5,5'-(1,4-Phenylen)bis<2-(ethylthio)-3-methyl-1,3-thiazolium-4-olat>

DL-1,4-Phenylenbis<<(butylthio)thioxomethylthio>essigsaeure>

DL-1,4-Phenylenbis<<(ethylthio)thioxomethylthio>essigsaeure>

DL-1,4-Phenylenbis<<(tert-butylthio)thioxomethylthio>essigsaeure>