2,3,5,6-Tetrafluoropyridin-4-ol

Base Information

• Chemical Name: 2,3,5,6-Tetrafluoropyridin-4-ol
• CAS No.: 2693-66-5
• Molecular Formula: C5HF4NO
• Molecular Weight: 167.063
• Hs Code.: 2933399090
• DSSTox Substance ID: DTXSID40478082
• Nikkaji Number: J1.021.775J,J910.851C
• Wikidata: Q82311251
• Mol file: 2693-66-5.mol

Synonyms:2,3,5,6-tetrafluoropyridin-4-ol;2693-66-5;4-Hydroxy-2,3,5,6-tetrafluoropyridine;2,3,5,6-TETRAFLUORO-4-PYRIDINOL;2,3,5,6-tetrafluoro-1H-pyridin-4-one;4(1H)-Pyridinone, 2,3,5,6-tetrafluoro-;SCHEMBL8734993;DTXSID40478082;AMY12511;MFCD00981885;AKOS006345766;SB53672;2,3,5,6-tetrafluoro-4-hydroxy-pyridine;PS-10148;A5277;CS-0314161;FT-0747618;2, 3, 5, 6-tetrafluoro-1H-pyridin-4-one;J-506878

Chemical Property of 2,3,5,6-Tetrafluoropyridin-4-ol

Chemical Property:

• Vapor Pressure: 0.001mmHg at 25°C
• Melting Point: 95-97
• Boiling Point: 296.115°C at 760 mmHg
• PKA: 3.71±0.33(Predicted)
• Flash Point: 132.886°C
• PSA: 33.12000
• Density: 1.706g/cm³
• LogP: 1.34360
• Storage Temp.: 2-8°C
• Sensitive.: Hygroscopic
• XLogP3: 1.4
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 166.99942630
• Heavy Atom Count: 11
• Complexity: 254

Purity/Quality:

97% ^*data from raw suppliers

2,3,5,6-tetrafluoropyridin-4-ol ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1(=C(NC(=C(C1=O)F)F)F)F

Technology Process of 2,3,5,6-Tetrafluoropyridin-4-ol

There total 14 articles about 2,3,5,6-Tetrafluoropyridin-4-ol 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: 83.0%

2,3,5,6-tetrafluoro-pyridin-4-olate diethyl-ammonium → 2,3,5,6-tetrafluoro-4-hydroxypyridine (2693-66-5)

Guidance literature:

With hydrogenchloride; at 5 ℃; for 1h;

DOI:10.1016/0022-1139(95)03355-6

Reference yield: 79.0%

Pentafluoropyridine (700-16-3) → 2,3,5,6-tetrafluoro-4-hydroxypyridine (2693-66-5)

Guidance literature:

With potassium hydroxide; In water; at 70 ℃; for 66h; Inert atmosphere; Schlenk technique; Glovebox;

DOI:10.1002/ejic.201801136

Reference yield: 71.0%

4-methoxy-2,3,5,6-tetrafluoropyridine (2375-90-8) → 2,3,5,6-tetrafluoro-4-hydroxypyridine (2693-66-5)

Guidance literature:

With hydrogen iodide; In water; 54 % aq. HI; 3 h, reflux;;

upstream raw materials:

2,3,5,6-tetrafluoro-4-pyridyl prop-2-enyl ether

Pentafluoropyridine

sodium hydroxide

4-methoxy-2,3,5,6-tetrafluoropyridine

Downstream raw materials:

4-methoxy-2,3,5,6-tetrafluoropyridine

{C₆H₅NH₃}{4-O-C₅F₄N}

[PdMe(OC₅NF₄)(Cy₂PCH₂PCy₂)]