Description

Potassium Phenylethynyltrifluoroborate is an organoboron reagent featuring a phenylethynyl group, widely utilized in modern synthetic chemistry. Its primary value lies in its role as a stable, air- and moisture-tolerant precursor for Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex carbon-carbon bonds. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable building blocks for drug discovery, ligand synthesis, and the development of functional organic molecules.

Application

• Pharmaceutical Intermediate Synthesis: A key building block for constructing arylacetylene scaffolds in active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Development: Used in the synthesis of novel herbicides, fungicides, and insecticides that incorporate acetylene-linked aromatic systems.
• Material Science & Organic Electronics: Serves as a precursor for conjugated polymers, molecular wires, and organic light-emitting diodes (OLEDs) via cross-coupling methodologies.
• Ligand & Catalyst Preparation: Employed in the synthesis of specialized phosphine or N-heterocyclic carbene (NHC) ligands containing acetylene spacers.
• Chemical Biology & Bioconjugation: Useful for introducing stable, click-chemistry compatible alkynyl handles onto biomolecules or surfaces.
• Academic & Industrial R&D: A versatile reagent for methodology development in transition-metal catalyzed reactions and new synthetic route exploration.

Basic Information

Product Name	Potassium Phenylethynyltrifluoroborate
CAS No.	485338-93-0
Molecular Formula	C8H5BF3K
Molecular Weight	208.03 g/mol
Synonyms	Potassium (Phenylethynyl)trifluoroborate; Potassium Trifluoro(phenylethynyl)borate; Phenylethynyltrifluoroborate Potassium Salt; Potassium (Phenylethynyl)trifluoroboranuide; Borate(1-), trifluoro(phenylethynyl)-, potassium; Potassium (Phenylethynyl)trifluoroborane; K-Ph-C≡C-BF3; Potassium Phenylethynyl-BF3 Complex
EINECS	Contact for details

Quality Control

Our Potassium Phenylethynyltrifluoroborate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR (1H, 11B, 13C), HPLC, and elemental analysis, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP guidelines where applicable to support our clients in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C under an inert atmosphere (argon or nitrogen) due to its hygroscopic (moisture-sensitive) nature. Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Assay (NMR)	≥ 97%
Water Content (KF)	≤ 2.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.