5-Chlorobenzofuran-3(2H)-one

Name: 5-Chlorobenzofuran-3(2H)-one
Brand: ChemScene
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CAS No. 3261-05-0
Cat. No. CS-0199918
Purity≥96%
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+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Structure of 3261-05-0

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Description

5-Chlorobenzofuran-3(2H)-one features a chlorinated benzofuran core with a ketone at the 3-position, delivering enhanced electronic density and metabolic stability. This scaffold serves as a key building block in medicinal chemistry, particularly for kinase inhibitors and bioactive heterocycles. The chlorine substituent enables favorable binding interactions in target proteins.

Application

5-Chlorobenzofuran-3(2H)-one serves as a versatile heterocyclic building block for medicinal chemistry and materials science. Its chlorine substituent enhances electrophilic reactivity, enabling palladium-catalyzed cross-coupling reactions. The lactone functionality provides stability and facilitates selective transformations, including nucleophilic ring-opening and derivatization under mild conditions. This compound functions effectively in synthetic sequences requiring bench-stable, orthogonally reactive scaffolds.

General Information

CAS No. 3261-05-0
Cat. No. CS-0199918
Purity ≥96%
MDL No. None
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₅ClO₂
Molecular Weight 168.58
Synonym(s) 5-Chlorobenzofuran-3-one
SMILES C1=CC2=C(C=C1Cl)C(=O)CO2

Computational Chemistry Data

TPSA 26.3
LogP 1.9151
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319
Precautionary Statements : P264-P270-P280-P302+P352-P330-P362+P364-P501

Quality Control

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Benzofuran compounds

Key Words

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5-Chlorobenzofuran-3(2H)-one

CAS No. 3261-05-0

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