1-Phenyl-1H-pyrazole-4-boronic acid

Name: 1-Phenyl-1H-pyrazole-4-boronic acid
Brand: ChemScene
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CAS No. 1201643-70-0
Cat. No. CS-0029533
Purity≥98%
MDL No.MFCD11044914

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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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1-Phenyl-1H-pyrazole-4-boronic acid|CS-0029533

Structure of 1201643-70-0

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General Information

CAS No. 1201643-70-0
Cat. No. CS-0029533
Purity ≥98%
MDL No. MFCD11044914
Storage -20°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₉H₉BN₂O₂
Molecular Weight 187.99
Synonym(s) B-(1-Phenyl-1H-pyrazol-4-yl)boronic acid; (1-Phenyl-1H-pyrazol-4-yl)boronic acid
SMILES OB(C1=CN(C2=CC=CC=C2)N=C1)O

Description

1-Phenyl-1H-pyrazole-4-boronic acid features a boronic acid handle attached to a phenyl-substituted pyrazole core, enabling efficient Suzuki-Miyaura cross-coupling. The electron-deficient pyrazole ring enhances reactivity while maintaining bench-stable handling under standard conditions.

Application

1-Phenyl-1H-pyrazole-4-boronic acid serves as a versatile building block in Suzuki-Miyaura cross-coupling reactions, enabling efficient C–C bond formation under mild conditions. Its stability, ease of handling, and compatibility with diverse functional groups make it ideal for constructing biaryl architectures in medicinal chemistry and materials science applications.

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-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

TPSA 58.28
LogP -0.4479
H_Acceptors 4
H_Donors 2
Rotatable_Bonds 2

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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1-Phenyl-1H-pyrazole-4-boronic acid

CAS No. 1201643-70-0

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