5-Bromo-2,4-dichloropyridine

Name: 5-Bromo-2,4-dichloropyridine
Brand: ChemScene
Availability: InStock
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CAS No. 849937-96-8
Cat. No. CS-W009056
Purity≥97%
MDL No.MFCD09031035

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 849937-96-8

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General Information

CAS No. 849937-96-8
Cat. No. CS-W009056
Purity ≥97%
MDL No. MFCD09031035
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₂BrCl₂N
Molecular Weight 226.89
Synonym(s) Pyridine, 5-bromo-2,4-dichloro-
SMILES ClC1=CC(Cl)=NC=C1Br

Description

5-Bromo-2,4-dichloropyridine features a pyridine core substituted with bromine at the 5-position and chlorine atoms at the 2- and 4-positions, creating a highly reactive electrophilic platform. This electron-deficient heterocycle facilitates efficient coupling reactions in cross-coupling and nucleophilic substitution processes. The molecule exhibits excellent stability under standard conditions, enabling reliable use in synthetic workflows requiring precise functional group manipulation.

Application

5-Bromo-2,4-dichloropyridine serves as a versatile building block in medicinal chemistry and agrochemical synthesis, enabling efficient late-stage functionalization via palladium-catalyzed cross-coupling reactions. The bromo group facilitates selective C–C bond formation while the dichloro substitution pattern ensures compatibility with diverse reaction conditions. Its bench-stable crystalline form simplifies handling and purification, making it well-suited for scalable synthetic workflows.

Synthesis

Route1
- In-stock
  
  53939-30-3
- ~80%
- In-stock
  
  849937-96-8
References
- Journal of Organic Chemistry, , vol. 70, # 7 p. 2494 - 2502
Route2
- 80791-79-3
- ~%
- In-stock
  
  849937-96-8
References
- Recueil des Travaux Chimiques des Pays-Bas, , vol. 70, p. 353,359

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Computational Chemistry Data

TPSA 12.89
LogP 3.1509
H_Acceptors 1
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Key Words

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5-Bromo-2,4-dichloropyridine

CAS No. 849937-96-8

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