2,3-Dichloro-5-fluoropyridine

Base Information

• Chemical Name: 2,3-Dichloro-5-fluoropyridine
• CAS No.: 185985-40-4
• Molecular Formula: C₅H₂Cl₂FN
• Molecular Weight: 165.982
• Hs Code.: 2933399990
• European Community (EC) Number: 963-231-4
• DSSTox Substance ID: DTXSID70594380
• Wikidata: Q72466321
• Mol file: 185985-40-4.mol

Synonyms:2,3-Dichloro-5-fluoropyridine;185985-40-4;MFCD08669666;Pyridine,2,3-dichloro-5-fluoro-;Pyridine, 2,3-dichloro-5-fluoro-;SCHEMBL1427764;DTXSID70594380;YIYIQENCPIISLL-UHFFFAOYSA-N;BBL103506;STL557316;AKOS005259318;AC-5997;DS-12561;SY111312;AM20050907;CS-0030569;EN300-132543;A848136;J-506924

Chemical Property of 2,3-Dichloro-5-fluoropyridine

Chemical Property:

• Vapor Pressure: 1.65mmHg at 25°C
• Refractive Index: 1.528
• Boiling Point: 174.028 °C at 760 mmHg
• PKA: -2.97±0.10(Predicted)
• Flash Point: 59.05 °C
• PSA: 12.89000
• Density: 1.498 g/cm³
• LogP: 2.52750
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Water Solubility.: Slightly soluble in chloroform, methanol and water.
• XLogP3: 2.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 164.9548326
• Heavy Atom Count: 9
• Complexity: 101

Purity/Quality:

97% ^*data from raw suppliers

2,3-Dichloro-5-fluoropyridine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C(C=NC(=C1Cl)Cl)F
• Uses: 2,3-Dichloro-5-fluoropyridine is a reagent that is used in the synthesis of 3-Chloro-5-fluoro Clodinafop Propargyl (C368645), which is an impurity of Clodinafop Propargyl (C584515).

Technology Process of 2,3-Dichloro-5-fluoropyridine

There total 3 articles about 2,3-Dichloro-5-fluoropyridine 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:

2-chloro-5-fluoro-3-nitropyridine (884495-37-8) → 2,3-dichloro -5-fluoropyridine (185985-40-4)

Guidance literature:

With hydrogenchloride; sodium nitrite; copper(l) chloride; In water; at 5 - 20 ℃; for 2.16667h;

Reference yield:

tert.-butylnitrite (540-80-7) + 5-Amino-2,3-dichloropyridine (98121-41-6) → 2,3-dichloro -5-fluoropyridine (185985-40-4)

Guidance literature:

With trifluoroborane diethyl ether; In hexane; dichloromethane;

Reference yield:

2-chloro-5-fluoro-3-nitro pyridine (136888-21-6) → 2,3-dichloro -5-fluoropyridine (185985-40-4)

Guidance literature:

Multi-step reaction with 2 steps

1: ammonium chloride; iron / ethanol; water; tetrahydrofuran / 5 h / Reflux

2: hydrogenchloride; sodium nitrite / copper(l) chloride / water / 2.17 h / 5 - 20 °C

With hydrogenchloride; iron; ammonium chloride; sodium nitrite; copper(l) chloride; In tetrahydrofuran; ethanol; water;

upstream raw materials:

tert.-butylnitrite

5-Amino-2,3-dichloropyridine

2-chloro-5-fluoro-3-nitro pyridine

2-chloro-5-fluoro-3-nitropyridine

Downstream raw materials:

2-amino-5-fluoro-3-nitropyridine

2-chloro-5-fluoro-3-nitropyridine

2-chloro-5-fluoro-3-nitro pyridine

2-amino-5-fluoropyridine