2-Chloro-3,5-dibromopyridine

Base Information

• Chemical Name: 2-Chloro-3,5-dibromopyridine
• CAS No.: 40360-47-2
• Molecular Formula: C5H2Br2ClN
• Molecular Weight: 271.34
• Hs Code.: 2933399090
• DSSTox Substance ID: DTXSID50355734
• Nikkaji Number: J3.457.223B
• Wikidata: Q72518221
• Mol file: 40360-47-2.mol

Synonyms:2-Chloro-3,5-dibromopyridine;3,5-Dibromo-2-chloropyridine;40360-47-2;3,5-dibromo-2-chloro-pyridine;MFCD00233991;MECLOFENAMATESODIUM;SCHEMBL898931;2-chloro-3,5 dibromo pyridine;DTXSID50355734;PYSICVOJSJMFKP-UHFFFAOYSA-N;BCP22206;BBL100717;STL554511;AKOS005255339;CS-W002543;DS-0868;AC-24918;SY017876;A6758;AM20070044;FT-0601410;EN300-135081;J-511252

Chemical Property of 2-Chloro-3,5-dibromopyridine

Chemical Property:

• Vapor Pressure: 0.0239mmHg at 25°C
• Melting Point: 42-44 °C
• Refractive Index: 1.62
• Boiling Point: 257.1 °C at 760 mmHg
• PKA: -3.02±0.10(Predicted)
• Flash Point: 109.3 °C
• PSA: 12.89000
• Density: 2.136 g/cm³
• LogP: 3.26000
• Storage Temp.: Inert atmosphere,Room Temperature
• XLogP3: 3.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 270.82220
• Heavy Atom Count: 9
• Complexity: 101

Purity/Quality:

99% ^*data from raw suppliers

3,5-Dibromo-2-chloropyridine ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39-37-37/39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C(C=NC(=C1Br)Cl)Br

Technology Process of 2-Chloro-3,5-dibromopyridine

There total 8 articles about 2-Chloro-3,5-dibromopyridine 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: 92.0%

3,5-dibromo-2-hydroxypyridine (13472-81-6) → 2-chloro-3,5-dibromopyridine (40360-47-2)

Guidance literature:

With trichlorophosphate; at 140 ℃; for 2h; Autoclave; neat (no solvent);

DOI:10.3390/molecules17044533

Reference yield: 91.0%

2-amino-3,5-dibromopyridine (35486-42-1) → 2-chloro-3,5-dibromopyridine (40360-47-2)

Guidance literature:

With hydrogenchloride; sodium nitrite; In water; at -20 - 20 ℃; for 4h;

DOI:10.1021/jacs.8b05343

Reference yield: 62.0%

3,5-dibromo-2-methoxypyridine (13472-60-1) → 2-chloro-3,5-dibromopyridine (40360-47-2)

Guidance literature:

With trichlorophosphate; In N,N-dimethyl-formamide; at 105 ℃; for 16h;

upstream raw materials:

3,5-dibromopyridine-N-oxide

3,5-dibromo-2-hydroxypyridine

2-amino-3,5-dibromopyridine

phosgene

Downstream raw materials:

3-Phenyl-9H-pyrido[2,3-b]indole

3,5-dibromo-2-(4-nitro-phenoxy)-pyridine

3,5-dibromo-pyridine-2-sulfonic acid

Refernces

• 1、 Das, Sandip Kumar,Roy, Satyajit,Khatua, Hillol,Chattopadhyay, Buddhadeb. "Ir-Catalyzed Intramolecular Transannulation/C(sp2)-H Amination of 1,2,3,4-Tetrazoles by Electrocyclization". supporting information. p. 8429 - 8433. Retrieved 2018/07/09.
• 2、 Wang, Han,Wen, Kun,Wang, Le,Xiang, Ye,Xu, Xiaocheng,Shen, Yongjia,Sun, Zhihua. "Large-scale solvent-free chlorination of hydroxy-pyrimidines,-pyridines,- pyrazines and-amides using equimolar POCl3". experimental part. p. 4533 - 4544. Retrieved 2012/06/30.