Description

[4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-Phenyl]Sulfur Pentafluoride is a high-value organoboron and organosulfur hybrid reagent, specifically a phenylsulfur pentafluoride derivative bearing a pinacol boronate ester group. This compound is critical for advanced organic synthesis, enabling the introduction of both the versatile SF5 group and a boronic ester handle for cross-coupling reactions in a single step. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries to create novel molecules with enhanced properties.

Application

• Pharmaceutical Intermediate: Serves as a key building block for incorporating the metabolically stable and highly lipophilic pentafluorosulfanyl (SF5) group into drug candidates, potentially improving their bioavailability and binding affinity.
• Agrochemical Synthesis: Used in the research and development of novel active ingredients where the SF5 group can impart increased chemical stability and pest control efficacy.
• Advanced Materials Chemistry: A precursor for synthesizing functionalized monomers and polymers with unique electronic or surface properties for applications in organic electronics and specialty coatings.
• Cross-Coupling Reactions: The pinacol boronate ester moiety allows for efficient Suzuki-Miyaura cross-coupling, enabling the construction of complex biaryl and conjugated systems bearing the SF5 group.
• Medicinal Chemistry & SAR Studies: Enables rapid exploration of structure-activity relationships by providing a convenient route to introduce the SF5 pharmacophore into diverse molecular scaffolds.
• Ligand and Catalyst Development: Used to create novel ligands and organocatalysts where the unique steric and electronic properties of the SF5 group can modulate reactivity and selectivity.

Basic Information

Product Name	[4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-Phenyl]Sulfur Pentafluoride
CAS No.	1286278-34-9
Molecular Formula	C12H16BF5O2S
Molecular Weight	330.13 g/mol
Synonyms	4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzenesulfur pentafluoride; 4-(SF5)Phenylboronic Acid Pinacol Ester; 4-Pentafluorosulfanylphenylboronic Acid Pinacol Ester; 4-(SF5)C6H4Bpin; (4-(Pentafluorosulfanyl)phenyl)boronic Acid Pinacol Ester; 1-SF5-4-Bpin-Benzene; 4-(Pinacolatoboryl)phenylsulfur pentafluoride
EINECS	Contact for details

Quality Control

Every batch of [4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-Phenyl]Sulfur Pentafluoride is manufactured and analyzed under strict quality management protocols to ensure consistency and reliability for sensitive synthetic applications. Our products undergo rigorous quality testing, including advanced chromatographic and spectroscopic methods, to ensure compliance with exacting research and development standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) in a freezer (-20°C to -10°C) for long-term stability. Allow the sealed container to reach room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥95% (Typical 97-99%)
Water Content (KF)	≤0.5%

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