2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene

Base Information

• Chemical Name: 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene
• CAS No.: 31438-93-4
• Molecular Formula: C₆F₄N₂O
• Molecular Weight: 192.072
• Mol file: 31438-93-4.mol

Synonyms:2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene

Chemical Property of 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene

There total 6 articles about 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene 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: 94.0%

trifluoronitromethane (335-02-4) + 4-amino-2,3,5,6-tetraflourophenol (938-63-6) + sodium nitrite (7632-00-0) → 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene (31438-93-4)

Guidance literature:

In further solvent(s); stirring 4-NH2C6F5OH soln. in 70 % H2SO4 soln. at 0°C, (2 h);

DOI:10.1039/j39710000562

Reference yield: 25.0%

4-amino-2,3,5,6-tetraflourophenol (938-63-6) → 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene (31438-93-4)

Guidance literature:

With sulfuric acid; sodium nitrite; at 0 ℃; for 2h;

DOI:10.1002/1521-3765(20001215)6:24<4567::AID-CHEM4567>3.0.CO;2-A

Reference yield:

2,3,5,6-tetraflourophenol (769-39-1,85303-67-9) → 2,3,5,6-Tetrafluoro-1-oxo-4-diazocyclohexa-2,5-dienylidene (31438-93-4)

Guidance literature:

Multi-step reaction with 3 steps

1.1: NaNO₂; aq. HCl / 0 °C

1.2: 50 percent / aq. NaOH / 1 h / 20 °C

2.1: 73 percent / sodium dithionite / aq. ethanol / 1 h / 90 °C

3.1: 25 percent / NaNO₂; aq. H₂SO₄ / 2 h / 0 °C

With hydrogenchloride; sodium dithionite; sulfuric acid; sodium nitrite; In ethanol;

DOI:10.1002/1521-3765(20001215)6:24<4567::AID-CHEM4567>3.0.CO;2-A

upstream raw materials:

4-amino-2,3,5,6-tetraflourophenol

2,3,5,6-tetraflourophenol

2,3,5,6-Tetrafluoro-1-hydroxy-4-azobenzene

4-hydroxy-2,3,5,6-tetrafluoronitrobenzene

Downstream raw materials:

4-oxo-2,3,5,6-tetrafluorocyclohexa-2,5-dienylidene

Refernces