7-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole

Name: 7-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole
Brand: ChemScene
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CAS No. 1554086-90-6
Cat. No. CS-0309685
Purity≥98%
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+
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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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7-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole|CS-0309685

Structure of 1554086-90-6

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General Information

CAS No. 1554086-90-6
Cat. No. CS-0309685
Purity ≥98%
MDL No. None
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₅BrN₂O
Molecular Weight 189.01
Synonym(s) None
SMILES BrC1=C2N(CCO2)N=C1

Description

7-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole is a heterocyclic scaffold featuring a bromine substituent at the 7-position and a partially saturated pyrazolo-oxazole core. This structure combines enhanced reactivity with stability, enabling direct incorporation into complex molecular architectures. The electron-deficient nature of the ring system facilitates transition metal-catalyzed coupling reactions, while the bench-stable, moisture-tolerant character simplifies handling in synthetic workflows.

Application

7-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole serves as a versatile heterocyclic building block for medicinal chemistry and synthetic organic applications. Its bromine substituent enables efficient palladium-catalyzed cross-coupling reactions, while the dihydropyrazolo[5,1-b]oxazole core offers stability and compatibility with diverse functional groups. The scaffold facilitates rapid access to complex nitrogen-containing architectures, particularly in the development of bioactive molecules and API intermediates.

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-P330-P362+P364-P405-P501

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Computational Chemistry Data

TPSA 27.05
LogP 1.038
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aliphatic heterocycle compounds Oxazolidine compounds

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Key Words

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7-Bromo-2,3-dihydropyrazolo[5,1-b]oxazole

CAS No. 1554086-90-6

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