4-Bromo-2,3-dichlorophenol

Name: 4-Bromo-2,3-dichlorophenol
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 1940-44-9
Cat. No. CS-0060312
Purity≥97%
MDL No.None

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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+
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Structure of 1940-44-9

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General Information

CAS No. 1940-44-9
Cat. No. CS-0060312
Purity ≥97%
MDL No. None
Storage RT, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₃BrCl₂O
Molecular Weight 241.90
Synonym(s) None
SMILES C1=CC(=C(C(=C1Br)Cl)Cl)O

Description

4-Bromo-2,3-dichlorophenol features a brominated aromatic core with two chlorine substituents at ortho and meta positions relative to the phenolic hydroxyl. This electron-deficient scaffold enables direct coupling in cross-coupling reactions and serves as a key intermediate in pharmaceutical synthesis. The compound exhibits enhanced stability under standard bench conditions and integrates readily into complex molecular architectures.

Application

4-Bromo-2,3-dichlorophenol serves as a versatile building block in medicinal chemistry and agrochemical synthesis, enabling efficient functionalization at the aromatic ring. Its ortho-chlorine substituents enhance regioselectivity in subsequent coupling reactions, while the phenolic hydroxyl group provides a handle for derivatization or metal coordination. The molecule exhibits good bench stability and facilitates straightforward purification, making it well-suited for use in Suzuki-Miyaura, Stille, and Ullmann-type transformations.

Synthesis

Route1
- 576-24-9
- ~81%
- In-stock
  
  1940-44-9
References
- ICOS CORPORATION Patent: WO2005/16883 A2, 2005 ; Location in patent: Page/Page column 323-324 ;

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H315-H319-H335
Precautionary Statements : P261-P264-P271-P280-P302+P352-P304+P340-P405-P501

Quality Control

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Computational Chemistry Data

TPSA 20.23
LogP 3.4615
H_Acceptors 1
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Chloride

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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4-Bromo-2,3-dichlorophenol

CAS No. 1940-44-9

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