459-45-0

Basic information

• Product Name: 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE
• Synonyms: 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE;4-Fluorobenzene-1-diazonium tetrafluoroboranuide
• CAS NO: 459-45-0
• Molecular Formula: BF₄*C₆H₄FN₂
• Molecular Weight: 209.91
• Product Categories: Aromatics Compounds;Aromatics
• Mol File: 459-45-0.mol
• Article Data: 50

Chemical Properties

• Appearance: /
• Solubility: Water
• CAS DataBase Reference: 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE(CAS DataBase Reference)
• NIST Chemistry Reference: 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE(459-45-0)
• EPA Substance Registry System: 4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE(459-45-0)

Safety Data

• Hazardous Substances Data: 459-45-0(Hazardous Substances Data)

Usage

Chemical Description

4-fluorobenzenediazonium tetrafluoroborate is a diazonium salt used as a precursor for the synthesis of radiopharmaceuticals.

Chemical Properties

Pale Brown Solid

Upstream product

• 371-40-4 4-fluoroaniline 
• 540-80-7 tert.-butylnitrite 
• 110-46-3 isopentyl nitrite 
• 7632-00-0 sodium nitrite 
• 13755-29-8 sodium tetrafluoroborate 

Downstream Products

• 398-21-0 4-bromo-4'-fluorobiphenyl 
• 10540-35-9 3-(4-fluorophenyl)phenyl bromide 
• 89346-54-3 2-bromo-4’-fluoro-1,1’-biphenyl 
• 113827-77-3 1-(dimethoxyphosphinyl)glyoxal 1-p-fluorophenylhydrazone 
• 456-22-4 4-Fluorobenzoic acid 
• 144601-62-7 4-(4-Fluorophenyl)-2,2,6,6-tetramethylheptane-3,5-dione 
• 79896-01-8 4-fluorobenzenediazocyanide 
• 462-06-6 fluorobenzene 
• 827-57-6 1-cyclopent-1-enyl 4-fluorobenzene 
• 78135-03-2 1-(cyclopent-2-enyl)-4-fluorobenzene 
• 324-74-3 4-fluoro-biphenyl 
• 371-14-2 4-fluorophenylhydrazine 
• 136265-10-6 ethyl 4-fluorocinnamate 
• 460-00-4 1-Bromo-4-fluorobenzene 

Relevant articles and documents

High-Yield Preparation of Exfoliated 1T-MoS2 with SERS Activity

Molybdenum disulfide (MoS2), a promising two-dimensional transition-metal dichalcogenide, presents a challenge in the tuning of its optoelectronic and chemical properties. Herein, we demonstrate an efficient route to alter the crystalline structure of MoS2 by chemical exfoliation. Using NaK metal alloys, exfoliated and covalently functionalized MoS2 derivatives were obtained with a high metallic (1T) phase ratio, up to 94.5%. Consequently, exfoliated MoS2 showed a significant surface-enhanced Raman scattering activity toward rhodamine 6G (R6G) and crystal violet, with low detection limits. The versatility of this approach allows the covalent functionalization of MoS2 without relying on edge or basal-plane defects of the structure and preserving the high-ratio 1T phase.

Metal-Free Visible-Light Synthesis of Arylsulfonyl Fluorides: Scope and Mechanism

The first metal-free procedure for the synthesis of arylsulfonyl fluorides is reported. Under organo-photoredox conditions, aryl diazonium salts react with a readily available SO2 source (DABSO) to afford the desired product through simple nucleophilic fluorination. The reaction tolerates the presence of both electron-rich and -poor aryls and demonstrated a broad functional group tolerance. To shed the light on the reaction mechanism, several experimental techniques were combined, including fluorescence, NMR, and EPR spectroscopy as well as DFT calculations.

Aqueous and Visible-Light-Promoted C-H (Hetero)arylation of Uracil Derivatives with Diazoniums

Direct C5 (hetero)arylation of uracil and uridine substrates with (hetero)aryl diazonium salts under photoredox catalysis with blue light was reported. The coupling proceeds efficiently with diazonium salts and heterocycles in good functional group tolerance at room temperature in aqueous solution without transition-metal components. A plausible radical mechanism has been proposed.