7-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one

Name: 7-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 23536-76-7
Cat. No. CS-0069074
Purity≥98%
MDL No.MFCD07434965

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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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7-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one|CS-0069074

Structure of 23536-76-7

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General Information

CAS No. 23536-76-7
Cat. No. CS-0069074
Purity ≥98%
MDL No. MFCD07434965
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₅BrN₂O
Molecular Weight 225.04
Synonym(s) 7-BroMo-pyrido[1,2-a]pyriMidin-4-one
SMILES O=C1C=CN=C2N1C=C(Br)C=C2

Description

7-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one is a heterocyclic building block featuring a brominated pyridopyrimidinone core with high reactivity at the C7 position. This electron-deficient scaffold enables efficient cross-coupling and functionalization under standard conditions. The molecule exhibits excellent stability and solubility in common organic solvents, facilitating use in medicinal chemistry and materials synthesis workflows.

Application

7-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one serves as a versatile heterocyclic building block for medicinal chemistry and synthetic methodology development. The bromine at the C7 position enables facile palladium-catalyzed cross-coupling reactions, while the pyrimidinone core provides a rigid, polar scaffold suitable for hydrogen bonding interactions. Its bench-stable solid form facilitates handling and purification, and it exhibits good functional group tolerance in standard coupling and cyclization protocols, making it a practical intermediate for constructing complex nitrogen-containing architectures.

Synthesis

Route1
- 25165-70-2
- ~76%
- In-stock
  
  23536-76-7
References
- Molnar, Annamaria; Faigl, Ferenc; Podanyi, Benjamin; Finta, Zoltan; Balazs, Laszlo; Hermecza, Istvan Heterocycles, 2009 , vol. 78, # 10 p. 2477 - 2488
Route2
- In-stock
  
  1072-97-5
- ~%
- In-stock
  
  23536-76-7
References
- Ravina; Zicane; Petrova; Gudriniece; Kalejs Chemistry of Heterocyclic Compounds, 2002 , vol. 38, # 7 p. 836 - 839

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 34.37
LogP 1.457
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyridine compounds

Building Blocks Skeleton Aromatic heterocycle compounds Pyrimidine compounds

Key Words

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7-Bromo-4H-pyrido[1,2-a]pyrimidin-4-one

CAS No. 23536-76-7

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