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CS-W001157 4
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Potassium trifluoro(1H-pyrazol-4-yl)borate

  • CAS No. 1111732-81-0

  • Cat. No. CS-0157356
  • Purity≥95%
  • MDL No.MFCD09992891

*For research and further manufacturing use only, not for direct human use.

Potassium trifluoro(1H-pyrazol-4-yl)borate|CS-0157356

Structure of 1111732-81-0

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General Information

  • CAS No. 1111732-81-0
  • Cat. No. CS-0157356
  • Purity ≥95%
  • MDL No. MFCD09992891
  • Storage 4°C, sealed storage, away from moisture
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₃H₃BF₃KN₂
  • Molecular Weight 173.97
  • Synonym(s) Potassium 1H-pyrazole-4-trifluoroborate
  • SMILES C1=C(C=NN1)[B-](F)(F)F.[K+]

Description

Potassium trifluoro(1H-pyrazol-4-yl)borate features a sterically protected boron center anchored to a pyrazole ring, enabling stable coordination in catalytic systems. This bench-stable reagent integrates readily into transition-metal-catalyzed transformations, offering enhanced functional group tolerance and controlled reactivity in synthetic applications.

Application

Potassium trifluoro(1H-pyrazol-4-yl)borate serves as a stable, bench-ready boron source for transition-metal-catalyzed cross-coupling reactions. Its trifluoroborate functionality enables efficient Suzuki-Miyaura coupling with aryl and heteroaryl halides, offering high functional group tolerance and predictable regiochemistry. The pyrazole moiety provides enhanced stability and solubility in polar solvents, facilitating straightforward purification and integration into complex molecular architectures.

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   28.68
  • LogP   -2.5319
  • H_Acceptors   1
  • H_Donors   1
  • Rotatable_Bonds   1

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